18207640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41381}}^1$

素因数の和:41403

約数の個数: 32

約数和(自身を含む): 44692560

約数和(自身を除く): 26484920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 41381, 82762, 165524, 206905, 331048, 413810, 455191, 827620, 910382, 1655240, 1820764, 2275955, 3641528, 4551910, 9103820, 18207640]

約数ペア:

[(1, 18207640), (2, 9103820), (4, 4551910), (5, 3641528), (8, 2275955), (10, 1820764), (11, 1655240), (20, 910382), (22, 827620), (40, 455191), (44, 413810), (55, 331048), (88, 206905), (110, 165524), (220, 82762), (440, 41381)]