20197951490

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28447819}}^1$

素因数の和:28447897

約数の個数: 16

約数和(自身を含む): 36868374720

約数和(自身を除く): 16670423230

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28447819, 56895638, 142239095, 284478190, 2019795149, 4039590298, 10098975745, 20197951490]

約数ペア:

[(1, 20197951490), (2, 10098975745), (5, 4039590298), (10, 2019795149), (71, 284478190), (142, 142239095), (355, 56895638), (710, 28447819)]