20225475

素因数分解:

$3^2\times 5^2\times {\mathrm{89891}}^1$

素因数の和:89907

約数の個数: 18

約数和(自身を含む): 36226476

約数和(自身を除く): 16001001

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 89891, 269673, 449455, 809019, 1348365, 2247275, 4045095, 6741825, 20225475]

約数ペア:

[(1, 20225475), (3, 6741825), (5, 4045095), (9, 2247275), (15, 1348365), (25, 809019), (45, 449455), (75, 269673), (225, 89891)]