520000731

素因数分解:

$3^2\times {\mathrm{199}}^2\times {\mathrm{1459}}^1$

素因数の和:1863

約数の個数: 18

約数和(自身を含む): 755422980

約数和(自身を除く): 235422249

約数列:

[1, 3, 9, 199, 597, 1459, 1791, 4377, 13131, 39601, 118803, 290341, 356409, 871023, 2613069, 57777859, 173333577, 520000731]

約数ペア:

[(1, 520000731), (3, 173333577), (9, 57777859), (199, 2613069), (597, 871023), (1459, 356409), (1791, 290341), (4377, 118803), (13131, 39601)]