8639080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6967}}^1$

素因数の和:7009

約数の個数: 32

約数和(自身を含む): 20067840

約数和(自身を除く): 11428760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 6967, 13934, 27868, 34835, 55736, 69670, 139340, 215977, 278680, 431954, 863908, 1079885, 1727816, 2159770, 4319540, 8639080]

約数ペア:

[(1, 8639080), (2, 4319540), (4, 2159770), (5, 1727816), (8, 1079885), (10, 863908), (20, 431954), (31, 278680), (40, 215977), (62, 139340), (124, 69670), (155, 55736), (248, 34835), (310, 27868), (620, 13934), (1240, 6967)]