12972425

素因数分解:

$5^2\times {\mathrm{29}}^2\times {\mathrm{617}}^1$

素因数の和:685

約数の個数: 18

約数和(自身を含む): 16686618

約数和(自身を除く): 3714193

約数列:

[1, 5, 25, 29, 145, 617, 725, 841, 3085, 4205, 15425, 17893, 21025, 89465, 447325, 518897, 2594485, 12972425]

約数ペア:

[(1, 12972425), (5, 2594485), (25, 518897), (29, 447325), (145, 89465), (617, 21025), (725, 17893), (841, 15425), (3085, 4205)]