28728765

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49109}}^1$

素因数の和:49133

約数の個数: 24

約数和(自身を含む): 53628120

約数和(自身を除く): 24899355

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 49109, 147327, 245545, 441981, 638417, 736635, 1915251, 2209905, 3192085, 5745753, 9576255, 28728765]

約数ペア:

[(1, 28728765), (3, 9576255), (5, 5745753), (9, 3192085), (13, 2209905), (15, 1915251), (39, 736635), (45, 638417), (65, 441981), (117, 245545), (195, 147327), (585, 49109)]