20152525

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{19661}}^1$

素因数の和:19712

約数の個数: 12

約数和(自身を含む): 25599924

約数和(自身を除く): 5447399

約数列:

[1, 5, 25, 41, 205, 1025, 19661, 98305, 491525, 806101, 4030505, 20152525]

約数ペア:

[(1, 20152525), (5, 4030505), (25, 806101), (41, 491525), (205, 98305), (1025, 19661)]