313050980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{2213}}^1$

素因数の和:2876

約数の個数: 48

約数和(自身を含む): 718611264

約数和(自身を除く): 405560284

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 643, 1286, 2213, 2572, 3215, 4426, 6430, 7073, 8852, 11065, 12860, 14146, 22130, 24343, 28292, 35365, 44260, 48686, 70730, 97372, 121715, 141460, 243430, 486860, 1422959, 2845918, 5691836, 7114795, 14229590, 15652549, 28459180, 31305098, 62610196, 78262745, 156525490, 313050980]

約数ペア:

[(1, 313050980), (2, 156525490), (4, 78262745), (5, 62610196), (10, 31305098), (11, 28459180), (20, 15652549), (22, 14229590), (44, 7114795), (55, 5691836), (110, 2845918), (220, 1422959), (643, 486860), (1286, 243430), (2213, 141460), (2572, 121715), (3215, 97372), (4426, 70730), (6430, 48686), (7073, 44260), (8852, 35365), (11065, 28292), (12860, 24343), (14146, 22130)]