20894290

素因数分解:

$2^1\times 5^1\times {\mathrm{1039}}^1\times {\mathrm{2011}}^1$

素因数の和:3057

約数の個数: 16

約数和(自身を含む): 37664640

約数和(自身を除く): 16770350

約数列:

[1, 2, 5, 10, 1039, 2011, 2078, 4022, 5195, 10055, 10390, 20110, 2089429, 4178858, 10447145, 20894290]

約数ペア:

[(1, 20894290), (2, 10447145), (5, 4178858), (10, 2089429), (1039, 20110), (2011, 10390), (2078, 10055), (4022, 5195)]