15717265

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:261

約数の個数: 24

約数和(自身を含む): 20446200

約数和(自身を除く): 4728935

約数列:

[1, 5, 17, 73, 85, 149, 289, 365, 745, 1241, 1445, 2533, 6205, 10877, 12665, 21097, 43061, 54385, 105485, 184909, 215305, 924545, 3143453, 15717265]

約数ペア:

[(1, 15717265), (5, 3143453), (17, 924545), (73, 215305), (85, 184909), (149, 105485), (289, 54385), (365, 43061), (745, 21097), (1241, 12665), (1445, 10877), (2533, 6205)]