257145165

素因数分解:

$3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{18493}}^1$

素因数の和:18610

約数の個数: 32

約数和(自身を含む): 461610240

約数和(自身を除く): 204465075

約数列:

[1, 3, 5, 9, 15, 27, 45, 103, 135, 309, 515, 927, 1545, 2781, 4635, 13905, 18493, 55479, 92465, 166437, 277395, 499311, 832185, 1904779, 2496555, 5714337, 9523895, 17143011, 28571685, 51429033, 85715055, 257145165]

約数ペア:

[(1, 257145165), (3, 85715055), (5, 51429033), (9, 28571685), (15, 17143011), (27, 9523895), (45, 5714337), (103, 2496555), (135, 1904779), (309, 832185), (515, 499311), (927, 277395), (1545, 166437), (2781, 92465), (4635, 55479), (13905, 18493)]