3988820060

素因数分解:

$2^2\times 5^1\times {\mathrm{199441003}}^1$

素因数の和:199441012

約数の個数: 12

約数和(自身を含む): 8376522168

約数和(自身を除く): 4387702108

約数列:

[1, 2, 4, 5, 10, 20, 199441003, 398882006, 797764012, 997205015, 1994410030, 3988820060]

約数ペア:

[(1, 3988820060), (2, 1994410030), (4, 997205015), (5, 797764012), (10, 398882006), (20, 199441003)]