39913220

素因数分解:

$2^2\times 5^1\times {\mathrm{1995661}}^1$

素因数の和:1995670

約数の個数: 12

約数和(自身を含む): 83817804

約数和(自身を除く): 43904584

約数列:

[1, 2, 4, 5, 10, 20, 1995661, 3991322, 7982644, 9978305, 19956610, 39913220]

約数ペア:

[(1, 39913220), (2, 19956610), (4, 9978305), (5, 7982644), (10, 3991322), (20, 1995661)]