20237225

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{2801}}^1$

素因数の和:2845

約数の個数: 18

約数和(自身を含む): 26666634

約数和(自身を除く): 6429409

約数列:

[1, 5, 17, 25, 85, 289, 425, 1445, 2801, 7225, 14005, 47617, 70025, 238085, 809489, 1190425, 4047445, 20237225]

約数ペア:

[(1, 20237225), (5, 4047445), (17, 1190425), (25, 809489), (85, 238085), (289, 70025), (425, 47617), (1445, 14005), (2801, 7225)]