2800538145

素因数分解:

$3^4\times 5^1\times {\mathrm{6914909}}^1$

素因数の和:6914926

約数の個数: 20

約数和(自身を含む): 5020224660

約数和(自身を除く): 2219686515

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 6914909, 20744727, 34574545, 62234181, 103723635, 186702543, 311170905, 560107629, 933512715, 2800538145]

約数ペア:

[(1, 2800538145), (3, 933512715), (5, 560107629), (9, 311170905), (15, 186702543), (27, 103723635), (45, 62234181), (81, 34574545), (135, 20744727), (405, 6914909)]