This is from Buell, *Binary Quadratic Forms*. From page 84, the class number for a negative discriminant $\Delta$ is about $$\frac{\sqrt{|\Delta|}}{\pi},$$ which comes from an $L$-function calculation on page 83.
Let's see, on page 101, he points out that for negative field discriminants, class group and narrow class group are identical. Then on page 103, the group of classes of binary quadratic forms is isomorphic to the narrow class group. So that works out.
I don't know about surjectivity of class numbers. I imagine so.
For a list of the first time each small class number occurs, see [OEIS060649][1], class numbers up to 50
I wrote a little program,
1 3 = 3
2 15 = 3 * 5
3 23 = 23
4 39 = 3 * 13
5 47 = 47
6 87 = 3 * 29
7 71 = 71
8 95 = 5 * 19
9 199 = 199
10 119 = 7 * 17
11 167 = 167
12 231 = 3 * 7 * 11
13 191 = 191
14 215 = 5 * 43
15 239 = 239
16 399 = 3 * 7 * 19
17 383 = 383
18 335 = 5 * 67
19 311 = 311
20 455 = 5 * 7 * 13
21 431 = 431
22 591 = 3 * 197
23 647 = 647
24 695 = 5 * 139
25 479 = 479
26 551 = 19 * 29
27 983 = 983
28 831 = 3 * 277
29 887 = 887
30 671 = 11 * 61
31 719 = 719
32 791 = 7 * 113
33 839 = 839
34 1079 = 13 * 83
35 1031 = 1031
36 959 = 7 * 137
37 1487 = 1487
38 1199 = 11 * 109
39 1439 = 1439
40 1271 = 31 * 41
41 1151 = 1151
42 1959 = 3 * 653
43 1847 = 1847
44 1391 = 13 * 107
45 1319 = 1319
46 2615 = 5 * 523
47 3023 = 3023
48 1751 = 17 * 103
49 1511 = 1511
50 1799 = 7 * 257
51 1559 = 1559
52 1679 = 23 * 73
53 2711 = 2711
54 2759 = 31 * 89
55 4463 = 4463
56 1991 = 11 * 181
57 2591 = 2591
58 2231 = 23 * 97
59 2399 = 2399
60 2159 = 17 * 127
61 3863 = 3863
62 2471 = 7 * 353
63 2351 = 2351
64 2519 = 11 * 229
65 3527 = 3527
66 3431 = 47 * 73
67 3719 = 3719
68 2831 = 19 * 149
69 3119 = 3119
70 3239 = 41 * 79
71 5471 = 5471
72 3311 = 7 * 11 * 43
73 2999 = 2999
74 4151 = 7 * 593
75 4703 = 4703
76 3071 = 37 * 83
77 6263 = 6263
78 5111 = 19 * 269
79 4391 = 4391
80 5183 = 71 * 73
81 3671 = 3671
82 3839 = 11 * 349
83 3911 = 3911
84 4031 = 29 * 139
85 4079 = 4079
86 6767 = 67 * 101
87 5279 = 5279
88 4199 = 13 * 17 * 19
89 6311 = 6311
90 5951 = 11 * 541
91 4679 = 4679
92 4991 = 7 * 23 * 31
93 5351 = 5351
94 7367 = 53 * 139
95 6959 = 6959
96 6071 = 13 * 467
97 5519 = 5519
98 6191 = 41 * 151
99 5591 = 5591
100 7991 = 61 * 131
101 5879 = 5879
102 9383 = 11 * 853
103 13799 = 13799
104 9359 = 7^2 * 191
105 6719 = 6719
106 7631 = 13 * 587
107 8231 = 8231
108 5759 = 13 * 443
109 5711 = 5711
110 7751 = 23 * 337
111 15359 = 15359
112 7895 = 5 * 1579
113 8039 = 8039
114 6431 = 59 * 109
115 7559 = 7559
116 7271 = 11 * 661
117 6551 = 6551
118 8351 = 7 * 1193
119 9791 = 9791
120 7391 = 19 * 389
121 8111 = 8111
122 11735 = 5 * 2347
123 14087 = 14087
124 9119 = 11 * 829
125 11519 = 11519
126 8279 = 17 * 487
127 19463 = 19463
128 10295 = 5 * 29 * 71
129 9551 = 9551
130 8879 = 13 * 683
131 12671 = 12671
132 8711 = 31 * 281
133 9719 = 9719
134 8399 = 37 * 227
135 8951 = 8951
136 9911 = 11 * 17 * 53
137 15287 = 15287
138 9071 = 47 * 193
139 9239 = 9239
140 13319 = 19 * 701
141 11399 = 11399
142 15311 = 61 * 251
143 11471 = 11471
144 11591 = 67 * 173
145 14879 = 14879
146 13199 = 67 * 197
147 13679 = 13679
148 11231 = 11 * 1021
149 17783 = 17783
150 11879 = 7 * 1697
151 22727 = 22727
152 14111 = 103 * 137
153 10391 = 10391
154 12311 = 13 * 947
155 20807 = 20807
156 10919 = 61 * 179
157 25847 = 25847
158 15935 = 5 * 3187
159 12479 = 12479
160 15431 = 13 * 1187
161 12239 = 12239
162 13919 = 31 * 449
163 40039 = 40039
164 14231 = 7 * 19 * 107
165 12911 = 12911
166 26279 = 11 * 2389
167 15671 = 15671
168 18599 = 7 * 2657
169 24551 = 24551
170 23183 = 97 * 239
171 13751 = 13751
172 17135 = 5 * 23 * 149
173 14159 = 14159
174 13439 = 89 * 151
175 18719 = 18719
176 18431 = 7 * 2633
177 22871 = 22871
178 13991 = 17 * 823
179 17519 = 17519
180 15839 = 47 * 337
181 14759 = 14759
182 14999 = 53 * 283
183 16631 = 16631
184 21791 = 7 * 11 * 283
185 14951 = 14951
186 20591 = 59 * 349
187 25583 = 25583
188 20951 = 7 * 41 * 73
189 22511 = 22511
190 16799 = 107 * 157
191 22271 = 22271
192 16511 = 11 * 19 * 79
193 26591 = 26591
194 20279 = 7 * 2897
195 15791 = 15791
196 19151 = 11 * 1741
197 24071 = 24071
198 17951 = 29 * 619
199 19991 = 19991
200 21311 = 101 * 211
201 32423 = 32423
202 17111 = 71 * 241
203 19031 = 19031
204 20039 = 29 * 691
205 18119 = 18119
206 20471 = 11 * 1861
207 34583 = 34583
208 19631 = 67 * 293
209 28151 = 28151
210 28079 = 43 * 653
211 39791 = 39791
212 20159 = 19 * 1061
213 18191 = 18191
214 21551 = 23 * 937
215 24359 = 24359
216 22799 = 7 * 3257
217 22679 = 22679
218 24839 = 59 * 421
219 24671 = 24671
220 26039 = 13 * 2003
221 26711 = 26711
222 22151 = 17 * 1303
223 44111 = 44111
224 25751 = 11 * 2341
225 25031 = 25031
226 25511 = 97 * 263
227 24239 = 24239
228 21479 = 47 * 457
229 23399 = 23399
230 25079 = 31 * 809
231 26759 = 26759
232 26351 = 13 * 2027
233 28871 = 28871
234 23231 = 13 * 1787
235 37991 = 37991
236 27599 = 11 * 13 * 193
237 33071 = 33071
238 28271 = 17 * 1663
239 25679 = 25679
240 26519 = 23 * 1153
241 37511 = 37511
242 23999 = 103 * 233
243 29399 = 29399
244 28391 = 11 * 29 * 89
245 26879 = 26879
246 34991 = 11 * 3181
247 27191 = 27191
248 25871 = 41 * 631
249 27551 = 27551
250 30551 = 137 * 223
251 39119 = 39119
252 27719 = 53 * 523
253 35831 = 35831
254 42335 = 5 * 8467
255 40559 = 40559
256 39431 = 7 * 43 * 131
257 31799 = 31799
258 30791 = 41 * 751
259 27431 = 27431
260 32759 = 17 * 41 * 47
261 38711 = 38711
262 37751 = 7 * 5393
263 36671 = 36671
264 29279 = 19 * 23 * 67
265 48023 = 48023
266 30239 = 11 * 2749
267 44711 = 44711
268 38111 = 23 * 1657
269 34919 = 34919
270 31919 = 59 * 541
271 83903 = 83903
272 30719 = 13 * 17 * 139
273 41999 = 41999
274 32639 = 127 * 257
275 38351 = 38351
276 36839 = 11 * 17 * 197
277 55871 = 55871
278 33431 = 101 * 331
279 33479 = 33479
280 38279 = 101 * 379
281 41039 = 41039
282 32471 = 19 * 1709
283 48311 = 48311
284 38471 = 17 * 31 * 73
285 35591 = 35591
286 42671 = 71 * 601
287 47591 = 47591
288 36431 = 17 * 2143
289 31391 = 31391
290 40799 = 11 * 3709
291 36599 = 36599
292 34151 = 13 * 37 * 71
293 43151 = 43151
294 49079 = 17 * 2887
295 51239 = 51239
296 46079 = 11 * 59 * 71
297 42839 = 42839
298 38951 = 11 * 3541
299 59879 = 59879
300 34271 = 43 * 797
301 43319 = 43319
302 61079 = 103 * 593
303 53279 = 53279
304 39311 = 19 * 2069
305 35279 = 35279
306 50879 = 83 * 613
307 56711 = 56711
308 40871 = 23 * 1777
309 43991 = 43991
310 41159 = 79 * 521
311 40031 = 40031
312 43559 = 43 * 1013
313 58679 = 58679
314 68631 = 3 * 22877
315 44351 = 44351
316 48671 = 7 * 17 * 409
317 42719 = 42719
318 45839 = 23 * 1993
319 62639 = 62639
320 42479 = 107 * 397
321 80687 = 80687
322 51959 = 223 * 233
323 49391 = 49391
324 39959 = 31 * 1289
325 38639 = 38639
326 56831 = 17 * 3343
327 46511 = 46511
328 63071 = 59 * 1069
329 43391 = 43391
330 58319 = 29 * 2011
331 44519 = 44519
332 51119 = 17 * 31 * 97
333 75431 = 75431
334 49271 = 29 * 1699
335 56591 = 56591
336 47879 = 13 * 29 * 127
337 46199 = 46199
338 78359 = 127 * 617
339 52919 = 52919
340 51911 = 23 * 37 * 61
341 67271 = 67271
342 54071 = 139 * 389
343 52631 = 52631
344 47519 = 19 * 41 * 61
345 58511 = 58511
346 56111 = 11 * 5101
347 75767 = 75767
348 52751 = 17 * 29 * 107
349 79967 = 79967
350 47759 = 163 * 293
351 66071 = 66071
352 45239 = 19 * 2381
353 61031 = 61031
354 48551 = 47 * 1033
355 53759 = 53759
356 64391 = 19 * 3389
357 49871 = 49871
358 62879 = 227 * 277
359 50111 = 50111
360 58799 = 13 * 4523
361 50951 = 50951
362 54599 = 71 * 769
363 64319 = 64319
364 60791 = 31 * 37 * 53
365 64151 = 64151
366 64559 = 11 * 5869
367 56999 = 56999
368 65639 = 7 * 9377
369 89231 = 89231
370 71759 = 73 * 983
371 82031 = 82031
372 67199 = 11 * 41 * 149
373 57791 = 57791
374 54911 = 43 * 1277
375 53231 = 53231
376 55319 = 11 * 47 * 107
377 73751 = 73751
378 62999 = 73 * 863
379 59351 = 59351
380 62711 = 11 * 5701
381 57119 = 57119
382 61199 = 19 * 3221
383 105167 = 105167
384 56759 = 211 * 269
385 78311 = 78311
386 69359 = 43 * 1613
387 58439 = 58439
388 73295 = 5 * 107 * 137
389 91079 = 91079
390 69551 = 157 * 443
391 78839 = 78839
392 77159 = 19 * 31 * 131
393 74231 = 74231
394 73799 = 11 * 6709
395 61151 = 61151
396 74711 = 7 * 13 * 821
397 84431 = 84431
398 60359 = 13 * 4643
399 61871 = 61871
400 67031 = 17 * 3943
401 73079 = 73079
402 72791 = 83 * 877
403 71399 = 71399
404 83279 = 7 * 11897
405 64679 = 64679
406 73391 = 79 * 929
407 70199 = 70199
408 71279 = 13 * 5483
409 67679 = 67679
410 85271 = 71 * 1201
411 87671 = 87671
412 73559 = 17 * 4327
413 100559 = 100559
414 73031 = 7 * 10433
415 81119 = 81119
416 71111 = 17 * 47 * 89
417 88799 = 88799
418 90119 = 227 * 397
419 151247 = 151247
420 74399 = 13 * 59 * 97
421 72959 = 72959
422 70391 = 43 * 1637
423 63839 = 63839
424 65159 = 23 * 2833
425 84719 = 84719
426 86831 = 31 * 2801
427 79631 = 79631
428 93959 = 17 * 5527
429 75479 = 75479
430 108479 = 7 * 15497
431 102359 = 102359
432 72071 = 97 * 743
433 96431 = 96431
434 68591 = 113 * 607
435 93911 = 93911
436 73631 = 29 * 2539
437 124823 = 124823
438 76439 = 11 * 6949
439 109391 = 109391
440 71231 = 19 * 23 * 163
441 92951 = 92951
442 92231 = 149 * 619
443 87911 = 87911
444 104279 = 7 * 14897
445 82799 = 82799
446 82199 = 13 * 6323
447 124991 = 124991
448 78119 = 191 * 409
449 128351 = 128351
450 75599 = 17 * 4447
451 141311 = 141311
452 83879 = 37 * 2267
453 83639 = 83639
454 75071 = 41 * 1831
455 80471 = 80471
456 97991 = 29 * 31 * 109
457 90359 = 90359
458 98831 = 23 * 4297
459 92399 = 92399
460 82631 = 19 * 4349
461 138959 = 138959
462 81311 = 17 * 4783
463 90191 = 90191
464 85679 = 11 * 7789
465 117959 = 117959
466 82991 = 37 * 2243
467 125639 = 125639
468 79439 = 19 * 37 * 113
469 87071 = 87071
470 85151 = 11 * 7741
471 107999 = 107999
472 106679 = 107 * 997
473 135599 = 135599
474 85511 = 233 * 367
475 99839 = 99839
476 88871 = 181 * 491
477 110711 = 110711
478 109031 = 13 * 8387
479 115319 = 115319
480 84839 = 43 * 1973
481 153071 = 153071
482 103871 = 241 * 431
483 110879 = 110879
484 91031 = 29 * 43 * 73
485 100799 = 100799
486 91439 = 61 * 1499
487 88079 = 88079
488 114215 = 5 * 53 * 431
489 205391 = 205391
490 120839 = 149 * 811
491 113039 = 113039
492 102959 = 149 * 691
493 140759 = 140759
494 118991 = 257 * 463
495 116471 = 116471
496 100751 = 7 * 37 * 389
497 115631 = 115631
498 113951 = 17 * 6703
499 122471 = 122471
500 96599 = 29 * 3331
501 101111 = 101111
502 103199 = 31 * 3329
503 129671 = 129671
504 101639 = 37 * 41 * 67
505 88919 = 88919
506 105311 = 53 * 1987
507 98999 = 98999
508 98159 = 103 * 953
509 140351 = 140351
510 92039 = 31 * 2969
511 130199 = 130199
512 132599 = 97 * 1367
513 115751 = 115751
514 178727 = 29 * 6163
515 126839 = 126839
516 114071 = 37 * 3083
517 106391 = 106391
518 159815 = 5 * 31963
519 97919 = 97919
520 112439 = 229 * 491
521 189983 = 189983
522 138911 = 31 * 4481
523 149111 = 149111
524 135959 = 79 * 1721
525 117911 = 117911
526 99791 = 73 * 1367
527 109199 = 109199
528 105551 = 59 * 1789
529 148991 = 148991
530 137759 = 347 * 397
531 112559 = 112559
532 108239 = 17 * 6367
533 95471 = 95471
534 102119 = 17 * 6007
535 131759 = 131759
536 123959 = 11 * 59 * 191
537 127679 = 127679
538 144119 = 31 * 4649
539 110039 = 110039
540 107159 = 13 * 8243
541 195887 = 195887
542 130031 = 11 * 11821
543 107351 = 107351
544 110759 = 11 * 10069
545 164999 = 164999
546 119999 = 11 * 10909
547 112031 = 112031
548 140999 = 19 * 41 * 181
549 199679 = 199679
550 127151 = 43 * 2957
551 112199 = 112199
552 128999 = 13 * 9923
553 121631 = 121631
554 247199 = 179 * 1381
555 104711 = 104711
556 111359 = 19 * 5861
557 177791 = 177791
558 175535 = 5 * 35107
559 115079 = 115079
560 127391 = 11 * 37 * 313
561 128831 = 128831
562 114791 = 191 * 601
563 121439 = 121439
564 121679 = 271 * 449
565 152879 = 152879
566 113879 = 263 * 433
567 138599 = 138599
568 130751 = 53 * 2467
569 216119 = 216119
570 147479 = 139 * 1061
571 144479 = 144479
572 129359 = 277 * 467
573 119759 = 119759
574 125831 = 29 * 4339
575 136751 = 136751
576 132431 = 13 * 61 * 167
577 123191 = 123191
578 126671 = 197 * 643
579 137639 = 137639
580 130919 = 89 * 1471
581 141671 = 141671
582 130511 = 19 * 6869
583 164471 = 164471
584 171839 = 227 * 757
585 135119 = 135119
586 158399 = 151 * 1049
587 232847 = 232847
588 134111 = 41 * 3271
589 119591 = 119591
590 140279 = 151 * 929
591 133559 = 133559
592 182591 = 157 * 1163
593 153191 = 153191
594 134879 = 29 * 4651
595 154439 = 154439
596 148799 = 7 * 29 * 733
597 149159 = 149159
598 176615 = 5 * 35323
599 138239 = 138239
600 148511 = 11 * 23 * 587
601 179591 = 179591
602 136919 = 23 * 5953
603 167471 = 167471
604 171311 = 7 * 24473
605 139079 = 139079
606 118271 = 101 * 1171
607 143519 = 143519
608 150839 = 13 * 41 * 283
609 128519 = 128519
610 142679 = 61 * 2339
611 142799 = 142799
612 139919 = 13 * 47 * 229
613 152039 = 152039
614 195551 = 17 * 11503
615 156719 = 156719
616 155039 = 197 * 787
617 161831 = 161831
618 152759 = 173 * 883
619 247607 = 247607
620 129191 = 23 * 41 * 137
621 188159 = 188159
622 190559 = 29 * 6571
623 186119 = 186119
624 151511 = 127 * 1193
625 234599 = 234599
626 156911 = 173 * 907
627 160079 = 160079
628 194255 = 5 * 38851
629 291287 = 291287
630 157031 = 7 * 22433
631 147551 = 147551
632 170519 = 41 * 4159
633 159431 = 159431
634 140591 = 11 * 12781
635 224351 = 224351
636 156239 = 23 * 6793
637 149519 = 149519
638 186359 = 157 * 1187
639 142271 = 142271
640 176231 = 11 * 37 * 433
641 201599 = 201599
642 168791 = 7 * 24113
643 177239 = 177239
644 175559 = 17 * 23 * 449
645 149399 = 149399
646 176039 = 401 * 439
647 165479 = 165479
648 183431 = 59 * 3109
649 162791 = 162791
650 227015 = 5 * 45403
651 145991 = 145991
652 165359 = 17 * 71 * 137
653 223319 = 223319
654 212231 = 83 * 2557
655 155399 = 155399
656 165959 = 67 * 2477
657 181919 = 181919
658 177119 = 37 * 4787
659 163679 = 163679
660 177551 = 11 * 16141
661 196439 = 196439
662 176879 = 73 * 2423
663 184631 = 184631
664 194711 = 11 * 31 * 571
665 189671 = 189671
666 154271 = 13 * 11867
667 147671 = 147671
668 160991 = 199 * 809
669 158759 = 158759
670 153599 = 269 * 571
671 185951 = 185951
672 152591 = 331 * 461
673 162839 = 162839
674 175271 = 53 * 3307
675 269879 = 269879
676 174191 = 373 * 467
677 601247 = 601247
678 177719 = 43 * 4133
679 276191 = 276191
680 181991 = 127 * 1433
681 269231 = 269231
682 185111 = 37 * 5003
683 188711 = 188711
684 171239 = 109 * 1571
685 227519 = 227519
686 187799 = 17 * 11047
687 224591 = 224591
688 214079 = 97 * 2207
689 206639 = 206639
690 184799 = 283 * 653
691 278087 = 278087
692 194879 = 23 * 37 * 229
693 169991 = 169991
694 198071 = 41 * 4831
695 184271 = 184271
696 184679 = 11 * 103 * 163
697 167879 = 167879
698 213839 = 43 * 4973
699 166319 = 166319
700 185471 = 11 * 13 * 1297
701 187871 = 187871
702 238271 = 11 * 21661
703 182159 = 182159
704 198239 = 137 * 1447
705 204599 = 204599
706 217031 = 31 * 7001
707 195599 = 195599
708 167639 = 53 * 3163
709 240959 = 240959
710 174719 = 379 * 461
711 183959 = 183959
712 209831 = 17 * 12343
713 174599 = 174599
714 204671 = 59 * 3469
715 218111 = 218111
716 171071 = 17 * 29 * 347
717 219911 = 219911
718 195719 = 19 * 10301
719 231839 = 231839
720 196031 = 11 * 71 * 251
721 220391 = 220391
722 254399 = 67 * 3797
723 180311 = 180311
724 203111 = 101 * 2011
725 226799 = 226799
726 175031 = 383 * 457
727 263951 = 263951
728 204239 = 7 * 163 * 179
729 178559 = 178559
730 194039 = 29 * 6691
731 374783 = 374783
732 202319 = 13 * 79 * 197
733 317279 = 317279
734 209711 = 43 * 4877
735 241511 = 241511
736 237551 = 139 * 1709
737 232391 = 232391
738 247511 = 11 * 22501
739 360959 = 360959
740 222719 = 7 * 31817
741 213359 = 213359
742 230831 = 19 * 12149
743 207191 = 207191
744 202991 = 41 * 4951
745 227471 = 227471
746 240191 = 7 * 34313
747 193751 = 193751
748 188471 = 29 * 67 * 97
749 264359 = 264359
750 218951 = 373 * 587
751 207479 = 207479
752 218231 = 13 * 16787
753 263111 = 263111
754 190319 = 83 * 2293
755 250871 = 250871
756 185279 = 41 * 4519
757 219119 = 219119
758 231791 = 7 * 33113
759 202751 = 202751
760 205271 = 11 * 18661
761 191231 = 191231
762 191351 = 179 * 1069
763 287279 = 287279
764 210311 = 19 * 11069
765 243239 = 243239
766 234911 = 61 * 3851
767 218279 = 218279
768 228791 = 109 * 2099
769 257591 = 257591
770 251039 = 17 * 14767
771 226511 = 226511
772 238391 = 17 * 37 * 379
773 235751 = 235751
774 224279 = 11 * 20389
775 265079 = 265079
776 222239 = 31 * 67 * 107
777 199559 = 199559
778 249959 = 43 * 5813
779 298031 = 298031
780 205631 = 61 * 3371
781 257711 = 257711
782 256511 = 199 * 1289
783 320591 = 320591
784 221231 = 197 * 1123
785 248351 = 248351
786 245159 = 61 * 4019
787 280199 = 280199
788 248519 = 257 * 967
789 223439 = 223439
790 234071 = 23 * 10177
791 276839 = 276839
792 225599 = 11 * 20509
793 260399 = 260399
794 302231 = 173 * 1747
795 235199 = 235199
796 224111 = 17 * 13183
797 211559 = 211559
798 298751 = 179 * 1669
799 231479 = 231479
800 233999 = 211 * 1109
801 284831 = 284831
802 346031 = 7 * 49433
803 298679 = 298679
804 212159 = 53 * 4003
805 217439 = 217439
806 264911 = 17 * 15583
807 249311 = 249311
808 201431 = 157 * 1283
809 238031 = 238031
810 232151 = 83 * 2797
811 228359 = 228359
812 267119 = 29 * 61 * 151
813 388319 = 388319
814 238871 = 53 * 4507
815 279551 = 279551
816 236759 = 17 * 19 * 733
817 467399 = 467399
818 230711 = 13 * 17747
819 257351 = 257351
820 242759 = 11 * 29 * 761
821 225671 = 225671
822 271319 = 181 * 1499
823 382919 = 382919
824 230879 = 11 * 139 * 151
825 316391 = 316391
826 273479 = 17 * 16087
827 251159 = 251159
828 238559 = 191 * 1249
829 289439 = 289439
830 266591 = 13 * 20507
831 236519 = 236519
832 239951 = 19 * 73 * 173
833 282959 = 282959
834 300551 = 37 * 8123
835 334991 = 334991
836 274559 = 463 * 593
837 255239 = 255239
838 274511 = 211 * 1301
839 336599 = 336599
840 246791 = 19 * 31 * 419
841 253679 = 253679
842 239399 = 41 * 5839
843 262391 = 262391
844 262631 = 181 * 1451
845 335999 = 335999
846 290111 = 19 * 15269
847 269519 = 269519
848 344351 = 7 * 49193
849 479879 = 479879
850 266279 = 13 * 20483
851 267959 = 267959
852 310631 = 19 * 16349
853 273719 = 273719
854 256871 = 61 * 4211
855 285071 = 285071
856 254999 = 19 * 13421
857 551951 = 551951
858 246671 = 97 * 2543
859 454991 = 454991
860 293471 = 17 * 61 * 283
861 302111 = 302111
862 345959 = 347 * 997
863 255191 = 255191
864 257039 = 37 * 6947
865 306479 = 306479
866 386759 = 439 * 881
867 354791 = 354791
868 288791 = 487 * 593
869 261791 = 261791
870 277079 = 11 * 25189
871 306239 = 306239
872 314639 = 13 * 24203
873 265151 = 265151
874 313799 = 311 * 1009
875 250799 = 250799
876 338519 = 503 * 673
877 297359 = 297359
878 319751 = 19 * 16829
879 378671 = 378671
880 239279 = 29 * 37 * 223
881 291191 = 291191
882 286919 = 19 * 15101
883 267671 = 267671
884 325415 = 5 * 37 * 1759
885 305231 = 305231
886 281111 = 109 * 2579
887 580031 = 580031
888 270479 = 11 * 67 * 367
889 440711 = 440711
890 264239 = 139 * 1901
891 327479 = 327479
892 250631 = 17 * 23 * 641
893 395111 = 395111
894 259871 = 151 * 1721
895 368471 = 368471
896 286079 = 43 * 6653
897 391151 = 391151
898 329159 = 101 * 3259
899 361919 = 361919
900 299519 = 11 * 73 * 373
901 417191 = 417191
902 320711 = 29 * 11059
903 300431 = 300431
904 324191 = 7 * 29 * 1597
905 322871 = 322871
906 396791 = 463 * 857
907 415631 = 415631
908 373295 = 5 * 13 * 5743
909 363719 = 363719
910 308831 = 53 * 5827
911 290351 = 290351
912 296999 = 23 * 37 * 349
913 357671 = 357671
914 390719 = 7 * 55817
915 342599 = 342599
916 280271 = 31 * 9041
917 307919 = 307919
918 277031 = 53 * 5227
919 303551 = 303551
920 304079 = 17 * 31 * 577
921 340919 = 340919
922 348071 = 107 * 3253
923 450479 = 450479
924 311519 = 13 * 31 * 773
925 314159 = 314159
926 349151 = 11 * 31741
927 364031 = 364031
928 360191 = 13 * 103 * 269
929 283799 = 283799
930 277679 = 23 * 12073
931 475271 = 475271
932 316151 = 11 * 41 * 701
933 317831 = 317831
934 349751 = 367 * 953
935 336551 = 336551
936 305399 = 29 * 10531
937 366239 = 366239
938 362039 = 277 * 1307
939 293999 = 293999
940 311351 = 23 * 13537
941 302279 = 302279
942 381671 = 59 * 6469
943 284231 = 284231
944 350831 = 13 * 26987
945 350159 = 350159
946 292991 = 67 * 4373
947 291359 = 291359
948 373511 = 311 * 1201
949 345791 = 345791
950 351911 = 7 * 50273
951 325079 = 325079
952 376031 = 37 * 10163
953 437111 = 437111
954 352439 = 31 * 11369
955 379679 = 379679
956 364199 = 11 * 113 * 293
957 413951 = 413951
958 426719 = 23 * 18553
959 405719 = 405719
960 338351 = 13 * 17 * 1531
961 383759 = 383759
962 373799 = 43 * 8693
963 289511 = 289511
964 313871 = 17 * 37 * 499
965 325751 = 325751
966 355631 = 349 * 1019
967 600959 = 600959
968 332111 = 13 * 59 * 433
969 382751 = 382751
970 336839 = 167 * 2017
971 494591 = 494591
972 351119 = 311 * 1129
973 348911 = 348911
974 301391 = 41 * 7351
975 376631 = 376631
976 341519 = 523 * 653
977 389399 = 389399
978 353279 = 149 * 2371
979 353471 = 353471
980 348311 = 79 * 4409
981 341879 = 341879
982 452399 = 37 * 12227
983 381911 = 381911
984 355319 = 19 * 18701
985 369071 = 369071
986 313199 = 41 * 7639
987 452759 = 452759
988 408239 = 13 * 31 * 1013
989 322559 = 322559
990 396431 = 7 * 56633
991 327071 = 327071
992 307271 = 109 * 2819
993 454079 = 454079
994 323111 = 103 * 3137
995 330431 = 330431
996 3