131977120

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{401}}^1$

素因数の和:455

約数の個数: 144

約数和(自身を含む): 363782664

約数和(自身を除く): 231805544

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 68, 80, 85, 88, 110, 121, 136, 160, 170, 176, 187, 220, 242, 272, 340, 352, 374, 401, 440, 484, 544, 605, 680, 748, 802, 880, 935, 968, 1210, 1360, 1496, 1604, 1760, 1870, 1936, 2005, 2057, 2420, 2720, 2992, 3208, 3740, 3872, 4010, 4114, 4411, 4840, 5984, 6416, 6817, 7480, 8020, 8228, 8822, 9680, 10285, 12832, 13634, 14960, 16040, 16456, 17644, 19360, 20570, 22055, 27268, 29920, 32080, 32912, 34085, 35288, 41140, 44110, 48521, 54536, 64160, 65824, 68170, 70576, 74987, 82280, 88220, 97042, 109072, 136340, 141152, 149974, 164560, 176440, 194084, 218144, 242605, 272680, 299948, 329120, 352880, 374935, 388168, 485210, 545360, 599896, 705760, 749870, 776336, 824857, 970420, 1090720, 1199792, 1499740, 1552672, 1649714, 1940840, 2399584, 2999480, 3299428, 3881680, 4124285, 5998960, 6598856, 7763360, 8248570, 11997920, 13197712, 16497140, 26395424, 32994280, 65988560, 131977120]

約数ペア:

[(1, 131977120), (2, 65988560), (4, 32994280), (5, 26395424), (8, 16497140), (10, 13197712), (11, 11997920), (16, 8248570), (17, 7763360), (20, 6598856), (22, 5998960), (32, 4124285), (34, 3881680), (40, 3299428), (44, 2999480), (55, 2399584), (68, 1940840), (80, 1649714), (85, 1552672), (88, 1499740), (110, 1199792), (121, 1090720), (136, 970420), (160, 824857), (170, 776336), (176, 749870), (187, 705760), (220, 599896), (242, 545360), (272, 485210), (340, 388168), (352, 374935), (374, 352880), (401, 329120), (440, 299948), (484, 272680), (544, 242605), (605, 218144), (680, 194084), (748, 176440), (802, 164560), (880, 149974), (935, 141152), (968, 136340), (1210, 109072), (1360, 97042), (1496, 88220), (1604, 82280), (1760, 74987), (1870, 70576), (1936, 68170), (2005, 65824), (2057, 64160), (2420, 54536), (2720, 48521), (2992, 44110), (3208, 41140), (3740, 35288), (3872, 34085), (4010, 32912), (4114, 32080), (4411, 29920), (4840, 27268), (5984, 22055), (6416, 20570), (6817, 19360), (7480, 17644), (8020, 16456), (8228, 16040), (8822, 14960), (9680, 13634), (10285, 12832)]