8521640

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1307}}^1$

素因数の和:1481

約数の個数: 32

約数和(自身を含む): 19306080

約数和(自身を除く): 10784440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1307, 1630, 2614, 3260, 5228, 6520, 6535, 10456, 13070, 26140, 52280, 213041, 426082, 852164, 1065205, 1704328, 2130410, 4260820, 8521640]

約数ペア:

[(1, 8521640), (2, 4260820), (4, 2130410), (5, 1704328), (8, 1065205), (10, 852164), (20, 426082), (40, 213041), (163, 52280), (326, 26140), (652, 13070), (815, 10456), (1304, 6535), (1307, 6520), (1630, 5228), (2614, 3260)]