209208195

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{1201}}^1$

素因数の和:1305

約数の個数: 72

約数和(自身を含む): 427527360

約数和(自身を除く): 218319165

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 79, 105, 147, 237, 245, 315, 395, 441, 553, 711, 735, 1185, 1201, 1659, 2205, 2765, 3555, 3603, 3871, 4977, 6005, 8295, 8407, 10809, 11613, 18015, 19355, 24885, 25221, 34839, 42035, 54045, 58065, 58849, 75663, 94879, 126105, 174195, 176547, 284637, 294245, 378315, 474395, 529641, 664153, 853911, 882735, 1423185, 1992459, 2648205, 3320765, 4269555, 4649071, 5977377, 9962295, 13947213, 23245355, 29886885, 41841639, 69736065, 209208195]

約数ペア:

[(1, 209208195), (3, 69736065), (5, 41841639), (7, 29886885), (9, 23245355), (15, 13947213), (21, 9962295), (35, 5977377), (45, 4649071), (49, 4269555), (63, 3320765), (79, 2648205), (105, 1992459), (147, 1423185), (237, 882735), (245, 853911), (315, 664153), (395, 529641), (441, 474395), (553, 378315), (711, 294245), (735, 284637), (1185, 176547), (1201, 174195), (1659, 126105), (2205, 94879), (2765, 75663), (3555, 58849), (3603, 58065), (3871, 54045), (4977, 42035), (6005, 34839), (8295, 25221), (8407, 24885), (10809, 19355), (11613, 18015)]