391406860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1505411}}^1$

素因数の和:1505433

約数の個数: 24

約数和(自身を含む): 885182256

約数和(自身を除く): 493775396

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1505411, 3010822, 6021644, 7527055, 15054110, 19570343, 30108220, 39140686, 78281372, 97851715, 195703430, 391406860]

約数ペア:

[(1, 391406860), (2, 195703430), (4, 97851715), (5, 78281372), (10, 39140686), (13, 30108220), (20, 19570343), (26, 15054110), (52, 7527055), (65, 6021644), (130, 3010822), (260, 1505411)]