257790286

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{1187}}^1\times {\mathrm{8353}}^1$

素因数の和:9555

約数の個数: 16

約数和(自身を含む): 416831184

約数和(自身を除く): 159040898

約数列:

[1, 2, 13, 26, 1187, 2374, 8353, 15431, 16706, 30862, 108589, 217178, 9915011, 19830022, 128895143, 257790286]

約数ペア:

[(1, 257790286), (2, 128895143), (13, 19830022), (26, 9915011), (1187, 217178), (2374, 108589), (8353, 30862), (15431, 16706)]