20875225

素因数分解:

$5^2\times 7^2\times {\mathrm{17041}}^1$

素因数の和:17065

約数の個数: 18

約数和(自身を含む): 30113214

約数和(自身を除く): 9237989

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 17041, 85205, 119287, 426025, 596435, 835009, 2982175, 4175045, 20875225]

約数ペア:

[(1, 20875225), (5, 4175045), (7, 2982175), (25, 835009), (35, 596435), (49, 426025), (175, 119287), (245, 85205), (1225, 17041)]