A055722 Sigma_3(n)/n > Sigma_3(k)/k for all k < n.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 88, 90, 92, 94, 96, 100, 102, 104, 106, 108, 112, 114, 116, 118, 120, 124, 126, 128

Offset

1,2

Comments

sigma_3(n) is the sum of the cubes of the divisors of n (A001158).

Links

Ivan Neretin, Table of n, a(n) for n = 1..5000

Mathematica

a=0; Do[b=DivisorSigma[3, n]/n; If[b>a, a=b; Print[n]], {n, 1, 150}]

Crossrefs

Cf. A002182.

Sequence in context: A108864 A334140 A338883 * A028830 A327749 A171828

Adjacent sequences: A055719 A055720 A055721 * A055723 A055724 A055725

Keyword

nonn

Author

Robert G. Wilson v, Jun 09 2000

Status

approved