I know this forum is for professional Mathematicians. I didn't know if the following question is fit or not fit for the site. If not feel free to delete it. >Consider the modified Euler product as follows: > >$$F(s) = \prod_{p} \left( 1 - \frac{c}{p^s} \right)^{-\ln(p)}$$ > >Here $c$ is a constant My questions are 1. Is there a compact representation for this product? 2. What are some non-trivial properties of this product? The motivation behind this is that: I want to calculate regularized sum as: $$-\sum_{p}\ln\left( 1 - \frac{1}{(ep)^{1/2}} \right){\ln(p)}$$ (My guess : probably this is equal to zero)