31803640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{6571}}^1$

素因数の和:6604

約数の個数: 48

約数和(自身を含む): 78666840

約数和(自身を除く): 46863200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 6571, 13142, 26284, 32855, 52568, 65710, 72281, 131420, 144562, 262840, 289124, 361405, 578248, 722810, 795091, 1445620, 1590182, 2891240, 3180364, 3975455, 6360728, 7950910, 15901820, 31803640]

約数ペア:

[(1, 31803640), (2, 15901820), (4, 7950910), (5, 6360728), (8, 3975455), (10, 3180364), (11, 2891240), (20, 1590182), (22, 1445620), (40, 795091), (44, 722810), (55, 578248), (88, 361405), (110, 289124), (121, 262840), (220, 144562), (242, 131420), (440, 72281), (484, 65710), (605, 52568), (968, 32855), (1210, 26284), (2420, 13142), (4840, 6571)]