81505035

素因数分解:

$3^4\times 5^1\times {\mathrm{201247}}^1$

素因数の和:201264

約数の個数: 20

約数和(自身を含む): 146106048

約数和(自身を除く): 64601013

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 201247, 603741, 1006235, 1811223, 3018705, 5433669, 9056115, 16301007, 27168345, 81505035]

約数ペア:

[(1, 81505035), (3, 27168345), (5, 16301007), (9, 9056115), (15, 5433669), (27, 3018705), (45, 1811223), (81, 1006235), (135, 603741), (405, 201247)]