18321260

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22343}}^1$

素因数の和:22393

約数の個数: 24

約数和(自身を含む): 39414816

約数和(自身を除く): 21093556

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22343, 44686, 89372, 111715, 223430, 446860, 916063, 1832126, 3664252, 4580315, 9160630, 18321260]

約数ペア:

[(1, 18321260), (2, 9160630), (4, 4580315), (5, 3664252), (10, 1832126), (20, 916063), (41, 446860), (82, 223430), (164, 111715), (205, 89372), (410, 44686), (820, 22343)]