8127640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3331}}^1$

素因数の和:3403

約数の個数: 32

約数和(自身を含む): 18592560

約数和(自身を除く): 10464920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 3331, 6662, 13324, 16655, 26648, 33310, 66620, 133240, 203191, 406382, 812764, 1015955, 1625528, 2031910, 4063820, 8127640]

約数ペア:

[(1, 8127640), (2, 4063820), (4, 2031910), (5, 1625528), (8, 1015955), (10, 812764), (20, 406382), (40, 203191), (61, 133240), (122, 66620), (244, 33310), (305, 26648), (488, 16655), (610, 13324), (1220, 6662), (2440, 3331)]