142019620

素因数分解:

$2^2\times 5^1\times {\mathrm{7100981}}^1$

素因数の和:7100990

約数の個数: 12

約数和(自身を含む): 298241244

約数和(自身を除く): 156221624

約数列:

[1, 2, 4, 5, 10, 20, 7100981, 14201962, 28403924, 35504905, 71009810, 142019620]

約数ペア:

[(1, 142019620), (2, 71009810), (4, 35504905), (5, 28403924), (10, 14201962), (20, 7100981)]