209029678

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{269}}^1$

素因数の和:338

約数の個数: 72

約数和(自身を含む): 394291800

約数和(自身を除く): 185262122

約数列:

[1, 2, 11, 13, 19, 22, 26, 38, 121, 143, 169, 209, 242, 247, 269, 286, 338, 418, 494, 538, 1573, 1859, 2299, 2717, 2959, 3146, 3211, 3497, 3718, 4598, 5111, 5434, 5918, 6422, 6994, 10222, 20449, 29887, 32549, 35321, 38467, 40898, 45461, 56221, 59774, 65098, 66443, 70642, 76934, 90922, 112442, 132886, 388531, 423137, 500071, 618431, 730873, 777062, 846274, 863759, 1000142, 1236862, 1461746, 1727518, 5500781, 8039603, 9501349, 11001562, 16079206, 19002698, 104514839, 209029678]

約数ペア:

[(1, 209029678), (2, 104514839), (11, 19002698), (13, 16079206), (19, 11001562), (22, 9501349), (26, 8039603), (38, 5500781), (121, 1727518), (143, 1461746), (169, 1236862), (209, 1000142), (242, 863759), (247, 846274), (269, 777062), (286, 730873), (338, 618431), (418, 500071), (494, 423137), (538, 388531), (1573, 132886), (1859, 112442), (2299, 90922), (2717, 76934), (2959, 70642), (3146, 66443), (3211, 65098), (3497, 59774), (3718, 56221), (4598, 45461), (5111, 40898), (5434, 38467), (5918, 35321), (6422, 32549), (6994, 29887), (10222, 20449)]