20287124

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1223}}^1$

素因数の和:1280

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 22895596

約数列:

[1, 2, 4, 11, 13, 22, 26, 29, 44, 52, 58, 116, 143, 286, 319, 377, 572, 638, 754, 1223, 1276, 1508, 2446, 4147, 4892, 8294, 13453, 15899, 16588, 26906, 31798, 35467, 53812, 63596, 70934, 141868, 174889, 349778, 390137, 461071, 699556, 780274, 922142, 1560548, 1844284, 5071781, 10143562, 20287124]

約数ペア:

[(1, 20287124), (2, 10143562), (4, 5071781), (11, 1844284), (13, 1560548), (22, 922142), (26, 780274), (29, 699556), (44, 461071), (52, 390137), (58, 349778), (116, 174889), (143, 141868), (286, 70934), (319, 63596), (377, 53812), (572, 35467), (638, 31798), (754, 26906), (1223, 16588), (1276, 15899), (1508, 13453), (2446, 8294), (4147, 4892)]