20158574890

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28392359}}^1$

素因数の和:28392437

約数の個数: 16

約数和(自身を含む): 36796498560

約数和(自身を除く): 16637923670

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28392359, 56784718, 141961795, 283923590, 2015857489, 4031714978, 10079287445, 20158574890]

約数ペア:

[(1, 20158574890), (2, 10079287445), (5, 4031714978), (10, 2015857489), (71, 283923590), (142, 141961795), (355, 56784718), (710, 28392359)]