20401326

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:95

約数の個数: 144

約数和(自身を含む): 56019600

約数和(自身を除く): 35618274

約数列:

[1, 2, 3, 6, 9, 11, 17, 18, 19, 22, 29, 33, 34, 38, 51, 57, 58, 66, 87, 99, 102, 114, 121, 153, 171, 174, 187, 198, 209, 242, 261, 306, 319, 323, 342, 363, 374, 418, 493, 522, 551, 561, 627, 638, 646, 726, 957, 969, 986, 1089, 1102, 1122, 1254, 1479, 1653, 1683, 1881, 1914, 1938, 2057, 2178, 2299, 2871, 2907, 2958, 3306, 3366, 3509, 3553, 3762, 4114, 4437, 4598, 4959, 5423, 5742, 5814, 6061, 6171, 6897, 7018, 7106, 8874, 9367, 9918, 10527, 10659, 10846, 12122, 12342, 13794, 16269, 18183, 18513, 18734, 20691, 21054, 21318, 28101, 31581, 31977, 32538, 36366, 37026, 39083, 41382, 48807, 54549, 56202, 59653, 63162, 63954, 66671, 78166, 84303, 97614, 103037, 109098, 117249, 119306, 133342, 168606, 178959, 200013, 206074, 234498, 309111, 351747, 357918, 400026, 536877, 600039, 618222, 703494, 927333, 1073754, 1133407, 1200078, 1854666, 2266814, 3400221, 6800442, 10200663, 20401326]

約数ペア:

[(1, 20401326), (2, 10200663), (3, 6800442), (6, 3400221), (9, 2266814), (11, 1854666), (17, 1200078), (18, 1133407), (19, 1073754), (22, 927333), (29, 703494), (33, 618222), (34, 600039), (38, 536877), (51, 400026), (57, 357918), (58, 351747), (66, 309111), (87, 234498), (99, 206074), (102, 200013), (114, 178959), (121, 168606), (153, 133342), (171, 119306), (174, 117249), (187, 109098), (198, 103037), (209, 97614), (242, 84303), (261, 78166), (306, 66671), (319, 63954), (323, 63162), (342, 59653), (363, 56202), (374, 54549), (418, 48807), (493, 41382), (522, 39083), (551, 37026), (561, 36366), (627, 32538), (638, 31977), (646, 31581), (726, 28101), (957, 21318), (969, 21054), (986, 20691), (1089, 18734), (1102, 18513), (1122, 18183), (1254, 16269), (1479, 13794), (1653, 12342), (1683, 12122), (1881, 10846), (1914, 10659), (1938, 10527), (2057, 9918), (2178, 9367), (2299, 8874), (2871, 7106), (2907, 7018), (2958, 6897), (3306, 6171), (3366, 6061), (3509, 5814), (3553, 5742), (3762, 5423), (4114, 4959), (4437, 4598)]