12390405

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20147}}^1$

素因数の和:20196

約数の個数: 16

約数和(自身を含む): 20309184

約数和(自身を除く): 7918779

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 20147, 60441, 100735, 302205, 826027, 2478081, 4130135, 12390405]

約数ペア:

[(1, 12390405), (3, 4130135), (5, 2478081), (15, 826027), (41, 302205), (123, 100735), (205, 60441), (615, 20147)]