20484820

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{10141}}^1$

素因数の和:10251

約数の個数: 24

約数和(自身を含む): 43448328

約数和(自身を除く): 22963508

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 10141, 20282, 40564, 50705, 101410, 202820, 1024241, 2048482, 4096964, 5121205, 10242410, 20484820]

約数ペア:

[(1, 20484820), (2, 10242410), (4, 5121205), (5, 4096964), (10, 2048482), (20, 1024241), (101, 202820), (202, 101410), (404, 50705), (505, 40564), (1010, 20282), (2020, 10141)]