68177780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{309899}}^1$

素因数の和:309919

約数の個数: 24

約数和(自身を含む): 156189600

約数和(自身を除く): 88011820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 309899, 619798, 1239596, 1549495, 3098990, 3408889, 6197980, 6817778, 13635556, 17044445, 34088890, 68177780]

約数ペア:

[(1, 68177780), (2, 34088890), (4, 17044445), (5, 13635556), (10, 6817778), (11, 6197980), (20, 3408889), (22, 3098990), (44, 1549495), (55, 1239596), (110, 619798), (220, 309899)]