9891640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{22481}}^1$

素因数の和:22503

約数の個数: 32

約数和(自身を含む): 24280560

約数和(自身を除く): 14388920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 22481, 44962, 89924, 112405, 179848, 224810, 247291, 449620, 494582, 899240, 989164, 1236455, 1978328, 2472910, 4945820, 9891640]

約数ペア:

[(1, 9891640), (2, 4945820), (4, 2472910), (5, 1978328), (8, 1236455), (10, 989164), (11, 899240), (20, 494582), (22, 449620), (40, 247291), (44, 224810), (55, 179848), (88, 112405), (110, 89924), (220, 44962), (440, 22481)]