A161574 a(n) = the second smallest positive integer with exactly n divisors.

3, 9, 8, 81, 18, 729, 30, 100, 80, 59049, 72, 531441, 320, 324, 168, 43046721, 252, 387420489, 336, 1600, 5120, 31381059609, 420, 10000, 20480, 1764, 1344, 22876792454961, 1008, 205891132094649, 1080, 25600, 327680, 11664, 1440

Offset: 2

Author

Leroy Quet, Jun 14 2009

Keywords

• nonn

Comments

Second column of A073915. [From R. J. Mathar, Jun 16 2009]

Crossrefs

A005179

Extensions

Extended by R. J. Mathar, Jun 16 2009