72972415

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{20939}}^1$

素因数の和:21002

約数の個数: 16

約数和(自身を含む): 94983840

約数和(自身を除く): 22011425

約数列:

[1, 5, 17, 41, 85, 205, 697, 3485, 20939, 104695, 355963, 858499, 1779815, 4292495, 14594483, 72972415]

約数ペア:

[(1, 72972415), (5, 14594483), (17, 4292495), (41, 1779815), (85, 858499), (205, 355963), (697, 104695), (3485, 20939)]