49661875

素因数分解:

$5^4\times {\mathrm{181}}^1\times {\mathrm{439}}^1$

素因数の和:640

約数の個数: 20

約数和(自身を含む): 62542480

約数和(自身を除く): 12880605

約数列:

[1, 5, 25, 125, 181, 439, 625, 905, 2195, 4525, 10975, 22625, 54875, 79459, 113125, 274375, 397295, 1986475, 9932375, 49661875]

約数ペア:

[(1, 49661875), (5, 9932375), (25, 1986475), (125, 397295), (181, 274375), (439, 113125), (625, 79459), (905, 54875), (2195, 22625), (4525, 10975)]