68813145

素因数分解:

$3^4\times 5^1\times {\mathrm{169909}}^1$

素因数の和:169926

約数の個数: 20

約数和(自身を含む): 123354660

約数和(自身を除く): 54541515

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 169909, 509727, 849545, 1529181, 2548635, 4587543, 7645905, 13762629, 22937715, 68813145]

約数ペア:

[(1, 68813145), (3, 22937715), (5, 13762629), (9, 7645905), (15, 4587543), (27, 2548635), (45, 1529181), (81, 849545), (135, 509727), (405, 169909)]