20990522306

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{27107}}^1$

素因数の和:27243

約数の個数: 48

約数和(自身を含む): 35717500800

約数和(自身を除く): 14726978494

約数列:

[1, 2, 13, 26, 29, 58, 79, 158, 169, 338, 377, 754, 1027, 2054, 2291, 4582, 4901, 9802, 13351, 26702, 27107, 29783, 54214, 59566, 352391, 387179, 704782, 774358, 786103, 1572206, 2141453, 4282906, 4581083, 9162166, 10219339, 20438678, 27838889, 55677778, 62102137, 124204274, 132851407, 265702814, 361905557, 723811114, 807327781, 1614655562, 10495261153, 20990522306]

約数ペア:

[(1, 20990522306), (2, 10495261153), (13, 1614655562), (26, 807327781), (29, 723811114), (58, 361905557), (79, 265702814), (158, 132851407), (169, 124204274), (338, 62102137), (377, 55677778), (754, 27838889), (1027, 20438678), (2054, 10219339), (2291, 9162166), (4582, 4581083), (4901, 4282906), (9802, 2141453), (13351, 1572206), (26702, 786103), (27107, 774358), (29783, 704782), (54214, 387179), (59566, 352391)]