639468

素因数分解:

$2^2\times 3^3\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:235

約数の個数: 48

約数和(自身を含む): 1720320

約数和(自身を除く): 1080852

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 54, 62, 93, 108, 124, 186, 191, 279, 372, 382, 558, 573, 764, 837, 1116, 1146, 1674, 1719, 2292, 3348, 3438, 5157, 5921, 6876, 10314, 11842, 17763, 20628, 23684, 35526, 53289, 71052, 106578, 159867, 213156, 319734, 639468]

約数ペア:

[(1, 639468), (2, 319734), (3, 213156), (4, 159867), (6, 106578), (9, 71052), (12, 53289), (18, 35526), (27, 23684), (31, 20628), (36, 17763), (54, 11842), (62, 10314), (93, 6876), (108, 5921), (124, 5157), (186, 3438), (191, 3348), (279, 2292), (372, 1719), (382, 1674), (558, 1146), (573, 1116), (764, 837)]