39872020

素因数分解:

$2^2\times 5^1\times {\mathrm{1993601}}^1$

素因数の和:1993610

約数の個数: 12

約数和(自身を含む): 83731284

約数和(自身を除く): 43859264

約数列:

[1, 2, 4, 5, 10, 20, 1993601, 3987202, 7974404, 9968005, 19936010, 39872020]

約数ペア:

[(1, 39872020), (2, 19936010), (4, 9968005), (5, 7974404), (10, 3987202), (20, 1993601)]