204640880

素因数分解:

$2^4\times 5^1\times {\mathrm{2558011}}^1$

素因数の和:2558024

約数の個数: 20

約数和(自身を含む): 475790232

約数和(自身を除く): 271149352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2558011, 5116022, 10232044, 12790055, 20464088, 25580110, 40928176, 51160220, 102320440, 204640880]

約数ペア:

[(1, 204640880), (2, 102320440), (4, 51160220), (5, 40928176), (8, 25580110), (10, 20464088), (16, 12790055), (20, 10232044), (40, 5116022), (80, 2558011)]