51207640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{116381}}^1$

素因数の和:116403

約数の個数: 32

約数和(自身を含む): 125692560

約数和(自身を除く): 74484920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 116381, 232762, 465524, 581905, 931048, 1163810, 1280191, 2327620, 2560382, 4655240, 5120764, 6400955, 10241528, 12801910, 25603820, 51207640]

約数ペア:

[(1, 51207640), (2, 25603820), (4, 12801910), (5, 10241528), (8, 6400955), (10, 5120764), (11, 4655240), (20, 2560382), (22, 2327620), (40, 1280191), (44, 1163810), (55, 931048), (88, 581905), (110, 465524), (220, 232762), (440, 116381)]