206402425

素因数分解:

$5^2\times {\mathrm{29}}^2\times {\mathrm{9817}}^1$

素因数の和:9885

約数の個数: 18

約数和(自身を含む): 265095818

約数和(自身を除く): 58693393

約数列:

[1, 5, 25, 29, 145, 725, 841, 4205, 9817, 21025, 49085, 245425, 284693, 1423465, 7117325, 8256097, 41280485, 206402425]

約数ペア:

[(1, 206402425), (5, 41280485), (25, 8256097), (29, 7117325), (145, 1423465), (725, 284693), (841, 245425), (4205, 49085), (9817, 21025)]