80831140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{310889}}^1$

素因数の和:310911

約数の個数: 24

約数和(自身を含む): 182803320

約数和(自身を除く): 101972180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 310889, 621778, 1243556, 1554445, 3108890, 4041557, 6217780, 8083114, 16166228, 20207785, 40415570, 80831140]

約数ペア:

[(1, 80831140), (2, 40415570), (4, 20207785), (5, 16166228), (10, 8083114), (13, 6217780), (20, 4041557), (26, 3108890), (52, 1554445), (65, 1243556), (130, 621778), (260, 310889)]