68497640

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{9461}}^1$

素因数の和:9653

約数の個数: 32

約数和(自身を含む): 154987560

約数和(自身を除く): 86489920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 7240, 9461, 18922, 37844, 47305, 75688, 94610, 189220, 378440, 1712441, 3424882, 6849764, 8562205, 13699528, 17124410, 34248820, 68497640]

約数ペア:

[(1, 68497640), (2, 34248820), (4, 17124410), (5, 13699528), (8, 8562205), (10, 6849764), (20, 3424882), (40, 1712441), (181, 378440), (362, 189220), (724, 94610), (905, 75688), (1448, 47305), (1810, 37844), (3620, 18922), (7240, 9461)]