81581085

素因数分解:

$3^2\times 5^1\times {\mathrm{709}}^1\times {\mathrm{2557}}^1$

素因数の和:3277

約数の個数: 24

約数和(自身を含む): 141662040

約数和(自身を除く): 60080955

約数列:

[1, 3, 5, 9, 15, 45, 709, 2127, 2557, 3545, 6381, 7671, 10635, 12785, 23013, 31905, 38355, 115065, 1812913, 5438739, 9064565, 16316217, 27193695, 81581085]

約数ペア:

[(1, 81581085), (3, 27193695), (5, 16316217), (9, 9064565), (15, 5438739), (45, 1812913), (709, 115065), (2127, 38355), (2557, 31905), (3545, 23013), (6381, 12785), (7671, 10635)]