208156795

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{13187}}^1$

素因数の和:13251

約数の個数: 32

約数和(自身を含む): 319044096

約数和(自身を除く): 110887301

約数列:

[1, 5, 7, 11, 35, 41, 55, 77, 205, 287, 385, 451, 1435, 2255, 3157, 13187, 15785, 65935, 92309, 145057, 461545, 540667, 725285, 1015399, 2703335, 3784669, 5076995, 5947337, 18923345, 29736685, 41631359, 208156795]

約数ペア:

[(1, 208156795), (5, 41631359), (7, 29736685), (11, 18923345), (35, 5947337), (41, 5076995), (55, 3784669), (77, 2703335), (205, 1015399), (287, 725285), (385, 540667), (451, 461545), (1435, 145057), (2255, 92309), (3157, 65935), (13187, 15785)]