205006788

素因数分解:

$2^2\times 3^4\times 7^2\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:416

約数の個数: 180

約数和(自身を含む): 642110700

約数和(自身を除く): 437103912

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 37, 42, 49, 54, 63, 74, 81, 84, 98, 108, 111, 126, 147, 148, 162, 189, 196, 222, 252, 259, 294, 324, 333, 349, 378, 441, 444, 518, 567, 588, 666, 698, 756, 777, 882, 999, 1036, 1047, 1134, 1323, 1332, 1396, 1554, 1764, 1813, 1998, 2094, 2268, 2331, 2443, 2646, 2997, 3108, 3141, 3626, 3969, 3996, 4188, 4662, 4886, 5292, 5439, 5994, 6282, 6993, 7252, 7329, 7938, 9324, 9423, 9772, 10878, 11988, 12564, 12913, 13986, 14658, 15876, 16317, 17101, 18846, 20979, 21756, 21987, 25826, 27972, 28269, 29316, 32634, 34202, 37692, 38739, 41958, 43974, 48951, 51303, 51652, 56538, 65268, 65961, 68404, 77478, 83916, 87948, 90391, 97902, 102606, 113076, 116217, 131922, 146853, 153909, 154956, 180782, 195804, 197883, 205212, 232434, 263844, 271173, 293706, 307818, 348651, 361564, 395766, 461727, 464868, 542346, 587412, 615636, 632737, 697302, 791532, 813519, 923454, 1045953, 1084692, 1265474, 1385181, 1394604, 1627038, 1846908, 1898211, 2091906, 2440557, 2530948, 2770362, 3254076, 3796422, 4183812, 4881114, 5540724, 5694633, 7321671, 7592844, 9762228, 11389266, 14643342, 17083899, 22778532, 29286684, 34167798, 51251697, 68335596, 102503394, 205006788]

約数ペア:

[(1, 205006788), (2, 102503394), (3, 68335596), (4, 51251697), (6, 34167798), (7, 29286684), (9, 22778532), (12, 17083899), (14, 14643342), (18, 11389266), (21, 9762228), (27, 7592844), (28, 7321671), (36, 5694633), (37, 5540724), (42, 4881114), (49, 4183812), (54, 3796422), (63, 3254076), (74, 2770362), (81, 2530948), (84, 2440557), (98, 2091906), (108, 1898211), (111, 1846908), (126, 1627038), (147, 1394604), (148, 1385181), (162, 1265474), (189, 1084692), (196, 1045953), (222, 923454), (252, 813519), (259, 791532), (294, 697302), (324, 632737), (333, 615636), (349, 587412), (378, 542346), (441, 464868), (444, 461727), (518, 395766), (567, 361564), (588, 348651), (666, 307818), (698, 293706), (756, 271173), (777, 263844), (882, 232434), (999, 205212), (1036, 197883), (1047, 195804), (1134, 180782), (1323, 154956), (1332, 153909), (1396, 146853), (1554, 131922), (1764, 116217), (1813, 113076), (1998, 102606), (2094, 97902), (2268, 90391), (2331, 87948), (2443, 83916), (2646, 77478), (2997, 68404), (3108, 65961), (3141, 65268), (3626, 56538), (3969, 51652), (3996, 51303), (4188, 48951), (4662, 43974), (4886, 41958), (5292, 38739), (5439, 37692), (5994, 34202), (6282, 32634), (6993, 29316), (7252, 28269), (7329, 27972), (7938, 25826), (9324, 21987), (9423, 21756), (9772, 20979), (10878, 18846), (11988, 17101), (12564, 16317), (12913, 15876), (13986, 14658)]