80870870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{27983}}^1$

素因数の和:28024

約数の個数: 24

約数和(自身を含む): 154639584

約数和(自身を除く): 73768714

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 27983, 55966, 139915, 279830, 475711, 951422, 2378555, 4757110, 8087087, 16174174, 40435435, 80870870]

約数ペア:

[(1, 80870870), (2, 40435435), (5, 16174174), (10, 8087087), (17, 4757110), (34, 2378555), (85, 951422), (170, 475711), (289, 279830), (578, 139915), (1445, 55966), (2890, 27983)]