8131640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{18481}}^1$

素因数の和:18503

約数の個数: 32

約数和(自身を含む): 19960560

約数和(自身を除く): 11828920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 18481, 36962, 73924, 92405, 147848, 184810, 203291, 369620, 406582, 739240, 813164, 1016455, 1626328, 2032910, 4065820, 8131640]

約数ペア:

[(1, 8131640), (2, 4065820), (4, 2032910), (5, 1626328), (8, 1016455), (10, 813164), (11, 739240), (20, 406582), (22, 369620), (40, 203291), (44, 184810), (55, 147848), (88, 92405), (110, 73924), (220, 36962), (440, 18481)]