20199704020

素因数分解:

$2^2\times 5^1\times {\mathrm{1009985201}}^1$

素因数の和:1009985210

約数の個数: 12

約数和(自身を含む): 42419378484

約数和(自身を除く): 22219674464

約数列:

[1, 2, 4, 5, 10, 20, 1009985201, 2019970402, 4039940804, 5049926005, 10099852010, 20199704020]

約数ペア:

[(1, 20199704020), (2, 10099852010), (4, 5049926005), (5, 4039940804), (10, 2019970402), (20, 1009985201)]