858502360

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{108947}}^1$

素因数の和:109155

約数の個数: 32

約数和(自身を含む): 1941453360

約数和(自身を除く): 1082951000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 108947, 217894, 435788, 544735, 871576, 1089470, 2178940, 4357880, 21462559, 42925118, 85850236, 107312795, 171700472, 214625590, 429251180, 858502360]

約数ペア:

[(1, 858502360), (2, 429251180), (4, 214625590), (5, 171700472), (8, 107312795), (10, 85850236), (20, 42925118), (40, 21462559), (197, 4357880), (394, 2178940), (788, 1089470), (985, 871576), (1576, 544735), (1970, 435788), (3940, 217894), (7880, 108947)]