20853885455

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{784423}}^1$

素因数の和:784850

約数の個数: 16

約数和(自身を含む): 27015562560

約数和(自身を除く): 6161677105

約数列:

[1, 5, 13, 65, 409, 2045, 5317, 26585, 784423, 3922115, 10197499, 50987495, 320829007, 1604145035, 4170777091, 20853885455]

約数ペア:

[(1, 20853885455), (5, 4170777091), (13, 1604145035), (65, 320829007), (409, 50987495), (2045, 10197499), (5317, 3922115), (26585, 784423)]