20430188

素因数分解:

$2^2\times {\mathrm{661}}^1\times {\mathrm{7727}}^1$

素因数の和:8392

約数の個数: 12

約数和(自身を含む): 35811552

約数和(自身を除く): 15381364

約数列:

[1, 2, 4, 661, 1322, 2644, 7727, 15454, 30908, 5107547, 10215094, 20430188]

約数ペア:

[(1, 20430188), (2, 10215094), (4, 5107547), (661, 30908), (1322, 15454), (2644, 7727)]