18162820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{69857}}^1$

素因数の和:69879

約数の個数: 24

約数和(自身を含む): 41076504

約数和(自身を除く): 22913684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 69857, 139714, 279428, 349285, 698570, 908141, 1397140, 1816282, 3632564, 4540705, 9081410, 18162820]

約数ペア:

[(1, 18162820), (2, 9081410), (4, 4540705), (5, 3632564), (10, 1816282), (13, 1397140), (20, 908141), (26, 698570), (52, 349285), (65, 279428), (130, 139714), (260, 69857)]