2581065

素因数分解:

$3^4\times 5^1\times {\mathrm{6373}}^1$

素因数の和:6390

約数の個数: 20

約数和(自身を含む): 4627524

約数和(自身を除く): 2046459

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 6373, 19119, 31865, 57357, 95595, 172071, 286785, 516213, 860355, 2581065]

約数ペア:

[(1, 2581065), (3, 860355), (5, 516213), (9, 286785), (15, 172071), (27, 95595), (45, 57357), (81, 31865), (135, 19119), (405, 6373)]