Numbers n for which sigma(n)/n = k+1/3 with integer k.
A160320
Numbers n for which sigma(n)/n = k+1/3 with integer k.
Terms
- a(0) =3a(1) =12a(2) =234a(3) =1080a(4) =6048a(5) =6552a(6) =435708a(7) =4713984a(8) =18506880a(9) =36197280a(10) =275890944a(11) =299980800a(12) =4138364160a(13) =13286744064a(14) =17827568640a(15) =30600708096a(16) =459010621440
External references
- oeis: A160320