Numbers k that divide sigma(k) + sigma(k^2).
A232703
Numbers k that divide sigma(k) + sigma(k^2).
Terms
- a(0) =1a(1) =2a(2) =185a(3) =113125a(4) =535350201a(5) =71373089217a(6) =82225037115a(7) =156231750533a(8) =268821356379
External references
- oeis: A232703