389920

素因数分解:

$2^5\times 5^1\times {\mathrm{2437}}^1$

素因数の和:2452

約数の個数: 24

約数和(自身を含む): 921564

約数和(自身を除く): 531644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 2437, 4874, 9748, 12185, 19496, 24370, 38992, 48740, 77984, 97480, 194960, 389920]

約数ペア:

[(1, 389920), (2, 194960), (4, 97480), (5, 77984), (8, 48740), (10, 38992), (16, 24370), (20, 19496), (32, 12185), (40, 9748), (80, 4874), (160, 2437)]