15721565180

素因数分解:

$2^2\times 5^1\times {\mathrm{9689}}^1\times {\mathrm{81131}}^1$

素因数の和:90829

約数の個数: 24

約数和(自身を含む): 33019101360

約数和(自身を除く): 17297536180

約数列:

[1, 2, 4, 5, 10, 20, 9689, 19378, 38756, 48445, 81131, 96890, 162262, 193780, 324524, 405655, 811310, 1622620, 786078259, 1572156518, 3144313036, 3930391295, 7860782590, 15721565180]

約数ペア:

[(1, 15721565180), (2, 7860782590), (4, 3930391295), (5, 3144313036), (10, 1572156518), (20, 786078259), (9689, 1622620), (19378, 811310), (38756, 405655), (48445, 324524), (81131, 193780), (96890, 162262)]