20439140

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9551}}^1$

素因数の和:9667

約数の個数: 24

約数和(自身を含む): 43327872

約数和(自身を除く): 22888732

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 9551, 19102, 38204, 47755, 95510, 191020, 1021957, 2043914, 4087828, 5109785, 10219570, 20439140]

約数ペア:

[(1, 20439140), (2, 10219570), (4, 5109785), (5, 4087828), (10, 2043914), (20, 1021957), (107, 191020), (214, 95510), (428, 47755), (535, 38204), (1070, 19102), (2140, 9551)]