A130674 a(n) = d(n)!, where d denotes the number of divisors of n.

1, 2, 2, 6, 2, 24, 2, 24, 6, 24, 2, 720, 2, 24, 24, 120, 2, 720, 2, 720, 24, 24, 2, 40320, 6, 24, 24, 720, 2, 40320, 2, 720, 24, 24, 24, 362880, 2, 24, 24, 40320, 2, 40320, 2, 720, 720, 24, 2, 3628800, 6, 720, 24, 720, 2, 40320, 24, 40320, 24, 24, 2, 479001600, 2, 24

Offset: 1

Author

Giovanni Teofilatto, Aug 12 2007

Keywords

• nonn

Links

• Harvey P. Dale, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A000005.

Programs

Mathematica

DivisorSigma[0,Range[70]]! (* Harvey P. Dale, Oct 06 2011 *)