20157484790

素因数分解:

$2^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3868999}}^1$

素因数の和:3869527

約数の個数: 16

約数和(自身を含む): 36353124000

約数和(自身を除く): 16195639210

約数列:

[1, 2, 5, 10, 521, 1042, 2605, 5210, 3868999, 7737998, 19344995, 38689990, 2015748479, 4031496958, 10078742395, 20157484790]

約数ペア:

[(1, 20157484790), (2, 10078742395), (5, 4031496958), (10, 2015748479), (521, 38689990), (1042, 19344995), (2605, 7737998), (5210, 3868999)]