39785225

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{17881}}^1$

素因数の和:17980

約数の個数: 12

約数和(自身を含む): 49890780

約数和(自身を除く): 10105555

約数列:

[1, 5, 25, 89, 445, 2225, 17881, 89405, 447025, 1591409, 7957045, 39785225]

約数ペア:

[(1, 39785225), (5, 7957045), (25, 1591409), (89, 447025), (445, 89405), (2225, 17881)]