Numbers k for which sigma(k)/k - 5/7 is an integer.
A218412
Numbers k for which sigma(k)/k - 5/7 is an integer.
Terms
- a(0) =14a(1) =588a(2) =2520a(3) =11466a(4) =167580a(5) =10999296a(6) =67858560a(7) =132723360a(8) =8644446720a(9) =31002402816a(10) =65367751680
External references
- oeis: A218412