199020400

素因数分解:

$2^4\times 5^2\times {\mathrm{497551}}^1$

素因数の和:497569

約数の個数: 30

約数和(自身を含む): 478147472

約数和(自身を除く): 279127072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 497551, 995102, 1990204, 2487755, 3980408, 4975510, 7960816, 9951020, 12438775, 19902040, 24877550, 39804080, 49755100, 99510200, 199020400]

約数ペア:

[(1, 199020400), (2, 99510200), (4, 49755100), (5, 39804080), (8, 24877550), (10, 19902040), (16, 12438775), (20, 9951020), (25, 7960816), (40, 4975510), (50, 3980408), (80, 2487755), (100, 1990204), (200, 995102), (400, 497551)]