20195005905

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1\times {\mathrm{80963}}^1$

素因数の和:81238

約数の個数: 48

約数和(自身を含む): 36678635136

約数和(自身を除く): 16483629231

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 241, 345, 723, 1035, 1205, 2169, 3615, 5543, 10845, 16629, 27715, 49887, 80963, 83145, 242889, 249435, 404815, 728667, 1214445, 1862149, 3643335, 5586447, 9310745, 16759341, 19512083, 27932235, 58536249, 83796705, 97560415, 175608747, 292681245, 448777909, 878043735, 1346333727, 2243889545, 4039001181, 6731668635, 20195005905]

約数ペア:

[(1, 20195005905), (3, 6731668635), (5, 4039001181), (9, 2243889545), (15, 1346333727), (23, 878043735), (45, 448777909), (69, 292681245), (115, 175608747), (207, 97560415), (241, 83796705), (345, 58536249), (723, 27932235), (1035, 19512083), (1205, 16759341), (2169, 9310745), (3615, 5586447), (5543, 3643335), (10845, 1862149), (16629, 1214445), (27715, 728667), (49887, 404815), (80963, 249435), (83145, 242889)]