82142020

素因数分解:

$2^2\times 5^1\times {\mathrm{4107101}}^1$

素因数の和:4107110

約数の個数: 12

約数和(自身を含む): 172498284

約数和(自身を除く): 90356264

約数列:

[1, 2, 4, 5, 10, 20, 4107101, 8214202, 16428404, 20535505, 41071010, 82142020]

約数ペア:

[(1, 82142020), (2, 41071010), (4, 20535505), (5, 16428404), (10, 8214202), (20, 4107101)]