Numbers n such that sigma(n) = (sigma(n)-n)', where sigma(n) is the sum of the divisors of n and (sigma(n)-n)' is the arithmetic derivative of the sum of aliquot parts of n.
A260964
Numbers n such that sigma(n) = (sigma(n)-n)', where sigma(n) is the sum of the divisors of n and (sigma(n)-n)' is the arithmetic derivative of the sum of aliquot parts of n.
Terms
- a(0) =24a(1) =492a(2) =2528a(3) =3800a(4) =18416a(5) =526688a(6) =531968a(7) =1084592a(8) =27446468a(9) =1350066372a(10) =2493705728a(11) =7768292812a(12) =15595308928
External references
- oeis: A260964