16788080

素因数分解:

$2^4\times 5^1\times {\mathrm{209851}}^1$

素因数の和:209864

約数の個数: 20

約数和(自身を含む): 39032472

約数和(自身を除く): 22244392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 209851, 419702, 839404, 1049255, 1678808, 2098510, 3357616, 4197020, 8394040, 16788080]

約数ペア:

[(1, 16788080), (2, 8394040), (4, 4197020), (5, 3357616), (8, 2098510), (10, 1678808), (16, 1049255), (20, 839404), (40, 419702), (80, 209851)]