Timeline for Solutions of $rad(\sigma(m))=2rad(m)$
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 12, 2015 at 20:34 | comment | added | Jose Arnaldo Bebita | This MSE question might be related. | |
| Feb 27, 2014 at 18:36 | comment | added | so-called friend Don | It sounds like you will find the (very similar) problems considered in this paper of interest: math.uga.edu/~pollack/pperfs16.pdf | |
| Feb 27, 2014 at 18:10 | vote | accept | Sylvain JULIEN | ||
| Feb 27, 2014 at 18:07 | answer | added | Stefan Kohl♦ | timeline score: 5 | |
| Feb 27, 2014 at 17:58 | comment | added | Gerhard Paseman | The equation is close to defining n as an odd k-multiperfect where k rational happens to be composed of prime factors n. An even weaker condition is P(rad(sigma(n))) <= P(n), where P is the largest prime factor of n > 1. As far as I know, even this weaker condition for n a prime power has not been investigated. Gerhard "Would Like To See Answers" Paseman, 2014.02.27 | |
| Feb 27, 2014 at 17:43 | history | asked | Sylvain JULIEN | CC BY-SA 3.0 |