20287344

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{499}}^1$

素因数の和:539

約数の個数: 120

約数和(自身を含む): 65968000

約数和(自身を除く): 45680656

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 21, 22, 24, 28, 33, 42, 44, 48, 56, 66, 77, 84, 88, 112, 121, 132, 154, 168, 176, 231, 242, 264, 308, 336, 363, 462, 484, 499, 528, 616, 726, 847, 924, 968, 998, 1232, 1452, 1497, 1694, 1848, 1936, 1996, 2541, 2904, 2994, 3388, 3493, 3696, 3992, 5082, 5489, 5808, 5988, 6776, 6986, 7984, 10164, 10479, 10978, 11976, 13552, 13972, 16467, 20328, 20958, 21956, 23952, 27944, 32934, 38423, 40656, 41916, 43912, 55888, 60379, 65868, 76846, 83832, 87824, 115269, 120758, 131736, 153692, 167664, 181137, 230538, 241516, 263472, 307384, 362274, 422653, 461076, 483032, 614768, 724548, 845306, 922152, 966064, 1267959, 1449096, 1690612, 1844304, 2535918, 2898192, 3381224, 5071836, 6762448, 10143672, 20287344]

約数ペア:

[(1, 20287344), (2, 10143672), (3, 6762448), (4, 5071836), (6, 3381224), (7, 2898192), (8, 2535918), (11, 1844304), (12, 1690612), (14, 1449096), (16, 1267959), (21, 966064), (22, 922152), (24, 845306), (28, 724548), (33, 614768), (42, 483032), (44, 461076), (48, 422653), (56, 362274), (66, 307384), (77, 263472), (84, 241516), (88, 230538), (112, 181137), (121, 167664), (132, 153692), (154, 131736), (168, 120758), (176, 115269), (231, 87824), (242, 83832), (264, 76846), (308, 65868), (336, 60379), (363, 55888), (462, 43912), (484, 41916), (499, 40656), (528, 38423), (616, 32934), (726, 27944), (847, 23952), (924, 21956), (968, 20958), (998, 20328), (1232, 16467), (1452, 13972), (1497, 13552), (1694, 11976), (1848, 10978), (1936, 10479), (1996, 10164), (2541, 7984), (2904, 6986), (2994, 6776), (3388, 5988), (3493, 5808), (3696, 5489), (3992, 5082)]