257942745

素因数分解:

$3^3\times 5^1\times {\mathrm{1910687}}^1$

素因数の和:1910701

約数の個数: 16

約数和(自身を含む): 458565120

約数和(自身を除く): 200622375

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1910687, 5732061, 9553435, 17196183, 28660305, 51588549, 85980915, 257942745]

約数ペア:

[(1, 257942745), (3, 85980915), (5, 51588549), (9, 28660305), (15, 17196183), (27, 9553435), (45, 5732061), (135, 1910687)]