19730875

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{5443}}^1$

素因数の和:5487

約数の個数: 16

約数和(自身を含む): 25477920

約数和(自身を除く): 5747045

約数列:

[1, 5, 25, 29, 125, 145, 725, 3625, 5443, 27215, 136075, 157847, 680375, 789235, 3946175, 19730875]

約数ペア:

[(1, 19730875), (5, 3946175), (25, 789235), (29, 680375), (125, 157847), (145, 136075), (725, 27215), (3625, 5443)]