64553140

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{31957}}^1$

素因数の和:32067

約数の個数: 24

約数和(自身を含む): 136908072

約数和(自身を除く): 72354932

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 31957, 63914, 127828, 159785, 319570, 639140, 3227657, 6455314, 12910628, 16138285, 32276570, 64553140]

約数ペア:

[(1, 64553140), (2, 32276570), (4, 16138285), (5, 12910628), (10, 6455314), (20, 3227657), (101, 639140), (202, 319570), (404, 159785), (505, 127828), (1010, 63914), (2020, 31957)]