20158871812

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{70981943}}^1$

素因数の和:70982018

約数の個数: 12

約数和(自身を含む): 35774899776

約数和(自身を除く): 15616027964

約数列:

[1, 2, 4, 71, 142, 284, 70981943, 141963886, 283927772, 5039717953, 10079435906, 20158871812]

約数ペア:

[(1, 20158871812), (2, 10079435906), (4, 5039717953), (71, 283927772), (142, 141963886), (284, 70981943)]