68697640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{156131}}^1$

素因数の和:156153

約数の個数: 32

約数和(自身を含む): 168622560

約数和(自身を除く): 99924920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 156131, 312262, 624524, 780655, 1249048, 1561310, 1717441, 3122620, 3434882, 6245240, 6869764, 8587205, 13739528, 17174410, 34348820, 68697640]

約数ペア:

[(1, 68697640), (2, 34348820), (4, 17174410), (5, 13739528), (8, 8587205), (10, 6869764), (11, 6245240), (20, 3434882), (22, 3122620), (40, 1717441), (44, 1561310), (55, 1249048), (88, 780655), (110, 624524), (220, 312262), (440, 156131)]