20105658

素因数分解:

$2^1\times 3^4\times {\mathrm{79}}^1\times {\mathrm{1571}}^1$

素因数の和:1664

約数の個数: 40

約数和(自身を含む): 45650880

約数和(自身を除く): 25545222

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 79, 81, 158, 162, 237, 474, 711, 1422, 1571, 2133, 3142, 4266, 4713, 6399, 9426, 12798, 14139, 28278, 42417, 84834, 124109, 127251, 248218, 254502, 372327, 744654, 1116981, 2233962, 3350943, 6701886, 10052829, 20105658]

約数ペア:

[(1, 20105658), (2, 10052829), (3, 6701886), (6, 3350943), (9, 2233962), (18, 1116981), (27, 744654), (54, 372327), (79, 254502), (81, 248218), (158, 127251), (162, 124109), (237, 84834), (474, 42417), (711, 28278), (1422, 14139), (1571, 12798), (2133, 9426), (3142, 6399), (4266, 4713)]