20899600

素因数分解:

$2^4\times 5^2\times {\mathrm{52249}}^1$

素因数の和:52267

約数の個数: 30

約数和(自身を含む): 50212250

約数和(自身を除く): 29312650

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52249, 104498, 208996, 261245, 417992, 522490, 835984, 1044980, 1306225, 2089960, 2612450, 4179920, 5224900, 10449800, 20899600]

約数ペア:

[(1, 20899600), (2, 10449800), (4, 5224900), (5, 4179920), (8, 2612450), (10, 2089960), (16, 1306225), (20, 1044980), (25, 835984), (40, 522490), (50, 417992), (80, 261245), (100, 208996), (200, 104498), (400, 52249)]