3989080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3217}}^1$

素因数の和:3259

約数の個数: 32

約数和(自身を含む): 9267840

約数和(自身を除く): 5278760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 3217, 6434, 12868, 16085, 25736, 32170, 64340, 99727, 128680, 199454, 398908, 498635, 797816, 997270, 1994540, 3989080]

約数ペア:

[(1, 3989080), (2, 1994540), (4, 997270), (5, 797816), (8, 498635), (10, 398908), (20, 199454), (31, 128680), (40, 99727), (62, 64340), (124, 32170), (155, 25736), (248, 16085), (310, 12868), (620, 6434), (1240, 3217)]