8859640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3631}}^1$

素因数の和:3703

約数の個数: 32

約数和(自身を含む): 20266560

約数和(自身を除く): 11406920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 3631, 7262, 14524, 18155, 29048, 36310, 72620, 145240, 221491, 442982, 885964, 1107455, 1771928, 2214910, 4429820, 8859640]

約数ペア:

[(1, 8859640), (2, 4429820), (4, 2214910), (5, 1771928), (8, 1107455), (10, 885964), (20, 442982), (40, 221491), (61, 145240), (122, 72620), (244, 36310), (305, 29048), (488, 18155), (610, 14524), (1220, 7262), (2440, 3631)]