20704376

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:133

約数の個数: 128

約数和(自身を含む): 53568000

約数和(自身を除く): 32863624

約数列:

[1, 2, 4, 7, 8, 11, 14, 19, 22, 28, 29, 38, 44, 56, 58, 61, 76, 77, 88, 116, 122, 133, 152, 154, 203, 209, 232, 244, 266, 308, 319, 406, 418, 427, 488, 532, 551, 616, 638, 671, 812, 836, 854, 1064, 1102, 1159, 1276, 1342, 1463, 1624, 1672, 1708, 1769, 2204, 2233, 2318, 2552, 2684, 2926, 3416, 3538, 3857, 4408, 4466, 4636, 4697, 5368, 5852, 6061, 7076, 7714, 8113, 8932, 9272, 9394, 11704, 12122, 12383, 12749, 14152, 15428, 16226, 17864, 18788, 19459, 24244, 24766, 25498, 30856, 32452, 33611, 37576, 38918, 42427, 48488, 49532, 50996, 64904, 67222, 77836, 84854, 89243, 99064, 101992, 134444, 136213, 155672, 169708, 178486, 235277, 268888, 272426, 339416, 356972, 369721, 470554, 544852, 713944, 739442, 941108, 1089704, 1478884, 1882216, 2588047, 2957768, 5176094, 10352188, 20704376]

約数ペア:

[(1, 20704376), (2, 10352188), (4, 5176094), (7, 2957768), (8, 2588047), (11, 1882216), (14, 1478884), (19, 1089704), (22, 941108), (28, 739442), (29, 713944), (38, 544852), (44, 470554), (56, 369721), (58, 356972), (61, 339416), (76, 272426), (77, 268888), (88, 235277), (116, 178486), (122, 169708), (133, 155672), (152, 136213), (154, 134444), (203, 101992), (209, 99064), (232, 89243), (244, 84854), (266, 77836), (308, 67222), (319, 64904), (406, 50996), (418, 49532), (427, 48488), (488, 42427), (532, 38918), (551, 37576), (616, 33611), (638, 32452), (671, 30856), (812, 25498), (836, 24766), (854, 24244), (1064, 19459), (1102, 18788), (1159, 17864), (1276, 16226), (1342, 15428), (1463, 14152), (1624, 12749), (1672, 12383), (1708, 12122), (1769, 11704), (2204, 9394), (2233, 9272), (2318, 8932), (2552, 8113), (2684, 7714), (2926, 7076), (3416, 6061), (3538, 5852), (3857, 5368), (4408, 4697), (4466, 4636)]