17628080

素因数分解:

$2^4\times 5^1\times {\mathrm{220351}}^1$

素因数の和:220364

約数の個数: 20

約数和(自身を含む): 40985472

約数和(自身を除く): 23357392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 220351, 440702, 881404, 1101755, 1762808, 2203510, 3525616, 4407020, 8814040, 17628080]

約数ペア:

[(1, 17628080), (2, 8814040), (4, 4407020), (5, 3525616), (8, 2203510), (10, 1762808), (16, 1101755), (20, 881404), (40, 440702), (80, 220351)]