68143240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{154871}}^1$

素因数の和:154893

約数の個数: 32

約数和(自身を含む): 167261760

約数和(自身を除く): 99118520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 154871, 309742, 619484, 774355, 1238968, 1548710, 1703581, 3097420, 3407162, 6194840, 6814324, 8517905, 13628648, 17035810, 34071620, 68143240]

約数ペア:

[(1, 68143240), (2, 34071620), (4, 17035810), (5, 13628648), (8, 8517905), (10, 6814324), (11, 6194840), (20, 3407162), (22, 3097420), (40, 1703581), (44, 1548710), (55, 1238968), (88, 774355), (110, 619484), (220, 309742), (440, 154871)]