397360

素因数分解:

$2^4\times 5^1\times {\mathrm{4967}}^1$

素因数の和:4980

約数の個数: 20

約数和(自身を含む): 924048

約数和(自身を除く): 526688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4967, 9934, 19868, 24835, 39736, 49670, 79472, 99340, 198680, 397360]

約数ペア:

[(1, 397360), (2, 198680), (4, 99340), (5, 79472), (8, 49670), (10, 39736), (16, 24835), (20, 19868), (40, 9934), (80, 4967)]