8267720

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1487}}^1$

素因数の和:1637

約数の個数: 32

約数和(自身を含む): 18748800

約数和(自身を除く): 10481080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 1487, 2780, 2974, 5560, 5948, 7435, 11896, 14870, 29740, 59480, 206693, 413386, 826772, 1033465, 1653544, 2066930, 4133860, 8267720]

約数ペア:

[(1, 8267720), (2, 4133860), (4, 2066930), (5, 1653544), (8, 1033465), (10, 826772), (20, 413386), (40, 206693), (139, 59480), (278, 29740), (556, 14870), (695, 11896), (1112, 7435), (1390, 5948), (1487, 5560), (2780, 2974)]