19900996820

素因数分解:

$2^2\times 5^1\times {\mathrm{2099}}^1\times {\mathrm{474059}}^1$

素因数の和:476167

約数の個数: 24

約数和(自身を含む): 41812092000

約数和(自身を除く): 21911095180

約数列:

[1, 2, 4, 5, 10, 20, 2099, 4198, 8396, 10495, 20990, 41980, 474059, 948118, 1896236, 2370295, 4740590, 9481180, 995049841, 1990099682, 3980199364, 4975249205, 9950498410, 19900996820]

約数ペア:

[(1, 19900996820), (2, 9950498410), (4, 4975249205), (5, 3980199364), (10, 1990099682), (20, 995049841), (2099, 9481180), (4198, 4740590), (8396, 2370295), (10495, 1896236), (20990, 948118), (41980, 474059)]