420625475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{3851}}^1$

素因数の和:4135

約数の個数: 24

約数和(自身を含む): 554549328

約数和(自身を除く): 133923853

約数列:

[1, 5, 17, 25, 85, 257, 425, 1285, 3851, 4369, 6425, 19255, 21845, 65467, 96275, 109225, 327335, 989707, 1636675, 4948535, 16825019, 24742675, 84125095, 420625475]

約数ペア:

[(1, 420625475), (5, 84125095), (17, 24742675), (25, 16825019), (85, 4948535), (257, 1636675), (425, 989707), (1285, 327335), (3851, 109225), (4369, 96275), (6425, 65467), (19255, 21845)]