257361165

素因数分解:

$3^3\times 5^1\times {\mathrm{1906379}}^1$

素因数の和:1906393

約数の個数: 16

約数和(自身を含む): 457531200

約数和(自身を除く): 200170035

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1906379, 5719137, 9531895, 17157411, 28595685, 51472233, 85787055, 257361165]

約数ペア:

[(1, 257361165), (3, 85787055), (5, 51472233), (9, 28595685), (15, 17157411), (27, 9531895), (45, 5719137), (135, 1906379)]