856819780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1\times {\mathrm{2269}}^1$

素因数の和:2596

約数の個数: 48

約数和(自身を含む): 1830528000

約数和(自身を除く): 973708220

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 239, 316, 395, 478, 790, 956, 1195, 1580, 2269, 2390, 4538, 4780, 9076, 11345, 18881, 22690, 37762, 45380, 75524, 94405, 179251, 188810, 358502, 377620, 542291, 717004, 896255, 1084582, 1792510, 2169164, 2711455, 3585020, 5422910, 10845820, 42840989, 85681978, 171363956, 214204945, 428409890, 856819780]

約数ペア:

[(1, 856819780), (2, 428409890), (4, 214204945), (5, 171363956), (10, 85681978), (20, 42840989), (79, 10845820), (158, 5422910), (239, 3585020), (316, 2711455), (395, 2169164), (478, 1792510), (790, 1084582), (956, 896255), (1195, 717004), (1580, 542291), (2269, 377620), (2390, 358502), (4538, 188810), (4780, 179251), (9076, 94405), (11345, 75524), (18881, 45380), (22690, 37762)]