6480405

素因数分解:

$3^4\times 5^1\times {\mathrm{16001}}^1$

素因数の和:16018

約数の個数: 20

約数和(自身を含む): 11617452

約数和(自身を除く): 5137047

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 16001, 48003, 80005, 144009, 240015, 432027, 720045, 1296081, 2160135, 6480405]

約数ペア:

[(1, 6480405), (3, 2160135), (5, 1296081), (9, 720045), (15, 432027), (27, 240015), (45, 144009), (81, 80005), (135, 48003), (405, 16001)]