20221640

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{2267}}^1$

素因数の和:2501

約数の個数: 32

約数和(自身を含む): 45722880

約数和(自身を除く): 25501240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 2267, 4460, 4534, 8920, 9068, 11335, 18136, 22670, 45340, 90680, 505541, 1011082, 2022164, 2527705, 4044328, 5055410, 10110820, 20221640]

約数ペア:

[(1, 20221640), (2, 10110820), (4, 5055410), (5, 4044328), (8, 2527705), (10, 2022164), (20, 1011082), (40, 505541), (223, 90680), (446, 45340), (892, 22670), (1115, 18136), (1784, 11335), (2230, 9068), (2267, 8920), (4460, 4534)]