9997225

素因数分解:

$5^2\times 7^2\times {\mathrm{8161}}^1$

素因数の和:8185

約数の個数: 18

約数和(自身を含む): 14422254

約数和(自身を除く): 4425029

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 8161, 40805, 57127, 204025, 285635, 399889, 1428175, 1999445, 9997225]

約数ペア:

[(1, 9997225), (5, 1999445), (7, 1428175), (25, 399889), (35, 285635), (49, 204025), (175, 57127), (245, 40805), (1225, 8161)]