20877884410

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29405471}}^1$

素因数の和:29405549

約数の個数: 16

約数和(自身を含む): 38109491712

約数和(自身を除く): 17231607302

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29405471, 58810942, 147027355, 294054710, 2087788441, 4175576882, 10438942205, 20877884410]

約数ペア:

[(1, 20877884410), (2, 10438942205), (5, 4175576882), (10, 2087788441), (71, 294054710), (142, 147027355), (355, 58810942), (710, 29405471)]