638960060

素因数分解:

$2^2\times 5^1\times {\mathrm{31948003}}^1$

素因数の和:31948012

約数の個数: 12

約数和(自身を含む): 1341816168

約数和(自身を除く): 702856108

約数列:

[1, 2, 4, 5, 10, 20, 31948003, 63896006, 127792012, 159740015, 319480030, 638960060]

約数ペア:

[(1, 638960060), (2, 319480030), (4, 159740015), (5, 127792012), (10, 63896006), (20, 31948003)]