205209215

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{739}}^1$

素因数の和:879

約数の個数: 32

約数和(自身を含む): 269952000

約数和(自身を除く): 64742785

約数列:

[1, 5, 19, 37, 79, 95, 185, 395, 703, 739, 1501, 2923, 3515, 3695, 7505, 14041, 14615, 27343, 55537, 58381, 70205, 136715, 277685, 291905, 519517, 1109239, 2160097, 2597585, 5546195, 10800485, 41041843, 205209215]

約数ペア:

[(1, 205209215), (5, 41041843), (19, 10800485), (37, 5546195), (79, 2597585), (95, 2160097), (185, 1109239), (395, 519517), (703, 291905), (739, 277685), (1501, 136715), (2923, 70205), (3515, 58381), (3695, 55537), (7505, 27343), (14041, 14615)]