81855425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{192601}}^1$

素因数の和:192628

約数の個数: 12

約数和(自身を含む): 107471916

約数和(自身を除く): 25616491

約数列:

[1, 5, 17, 25, 85, 425, 192601, 963005, 3274217, 4815025, 16371085, 81855425]

約数ペア:

[(1, 81855425), (5, 16371085), (17, 4815025), (25, 3274217), (85, 963005), (425, 192601)]