64620405

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{10331}}^1$

素因数の和:10481

約数の個数: 24

約数和(自身を含む): 112825440

約数和(自身を除く): 48205035

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 6255, 10331, 30993, 51655, 92979, 154965, 464895, 1436009, 4308027, 7180045, 12924081, 21540135, 64620405]

約数ペア:

[(1, 64620405), (3, 21540135), (5, 12924081), (9, 7180045), (15, 4308027), (45, 1436009), (139, 464895), (417, 154965), (695, 92979), (1251, 51655), (2085, 30993), (6255, 10331)]