20001140

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18869}}^1$

素因数の和:18931

約数の個数: 24

約数和(自身を含む): 42797160

約数和(自身を除く): 22796020

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 18869, 37738, 75476, 94345, 188690, 377380, 1000057, 2000114, 4000228, 5000285, 10000570, 20001140]

約数ペア:

[(1, 20001140), (2, 10000570), (4, 5000285), (5, 4000228), (10, 2000114), (20, 1000057), (53, 377380), (106, 188690), (212, 94345), (265, 75476), (530, 37738), (1060, 18869)]