817480

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 1866240

約数和(自身を除く): 1048760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 191, 214, 382, 428, 535, 764, 856, 955, 1070, 1528, 1910, 2140, 3820, 4280, 7640, 20437, 40874, 81748, 102185, 163496, 204370, 408740, 817480]

約数ペア:

[(1, 817480), (2, 408740), (4, 204370), (5, 163496), (8, 102185), (10, 81748), (20, 40874), (40, 20437), (107, 7640), (191, 4280), (214, 3820), (382, 2140), (428, 1910), (535, 1528), (764, 1070), (856, 955)]