20728758512

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{8317}}^1$

素因数の和:8384

約数の個数: 180

約数和(自身を含む): 54147085704

約数和(自身を除く): 33418327192

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 28, 34, 44, 49, 56, 68, 77, 88, 98, 112, 119, 136, 154, 176, 187, 196, 238, 272, 289, 308, 374, 392, 476, 539, 578, 616, 748, 784, 833, 952, 1078, 1156, 1232, 1309, 1496, 1666, 1904, 2023, 2156, 2312, 2618, 2992, 3179, 3332, 4046, 4312, 4624, 5236, 6358, 6664, 8092, 8317, 8624, 9163, 10472, 12716, 13328, 14161, 16184, 16634, 18326, 20944, 22253, 25432, 28322, 32368, 33268, 36652, 44506, 50864, 56644, 58219, 66536, 73304, 89012, 91487, 113288, 116438, 133072, 141389, 146608, 155771, 178024, 182974, 226576, 232876, 282778, 311542, 356048, 365948, 407533, 465752, 565556, 623084, 640409, 731896, 815066, 931504, 989723, 1131112, 1246168, 1280818, 1463792, 1555279, 1630132, 1979446, 2262224, 2403613, 2492336, 2561636, 3110558, 3260264, 3958892, 4482863, 4807226, 5123272, 6221116, 6520528, 6928061, 7917784, 8965726, 9614452, 10246544, 10886953, 12442232, 13856122, 15835568, 16825291, 17931452, 19228904, 21773906, 24884464, 26439743, 27712244, 33650582, 35862904, 38457808, 43547812, 52879486, 55424488, 67301164, 71725808, 76208671, 87095624, 105758972, 110848976, 117777037, 134602328, 152417342, 174191248, 185078201, 211517944, 235554074, 269204656, 304834684, 370156402, 423035888, 471108148, 609669368, 740312804, 942216296, 1219338736, 1295547407, 1480625608, 1884432592, 2591094814, 2961251216, 5182189628, 10364379256, 20728758512]

約数ペア:

[(1, 20728758512), (2, 10364379256), (4, 5182189628), (7, 2961251216), (8, 2591094814), (11, 1884432592), (14, 1480625608), (16, 1295547407), (17, 1219338736), (22, 942216296), (28, 740312804), (34, 609669368), (44, 471108148), (49, 423035888), (56, 370156402), (68, 304834684), (77, 269204656), (88, 235554074), (98, 211517944), (112, 185078201), (119, 174191248), (136, 152417342), (154, 134602328), (176, 117777037), (187, 110848976), (196, 105758972), (238, 87095624), (272, 76208671), (289, 71725808), (308, 67301164), (374, 55424488), (392, 52879486), (476, 43547812), (539, 38457808), (578, 35862904), (616, 33650582), (748, 27712244), (784, 26439743), (833, 24884464), (952, 21773906), (1078, 19228904), (1156, 17931452), (1232, 16825291), (1309, 15835568), (1496, 13856122), (1666, 12442232), (1904, 10886953), (2023, 10246544), (2156, 9614452), (2312, 8965726), (2618, 7917784), (2992, 6928061), (3179, 6520528), (3332, 6221116), (4046, 5123272), (4312, 4807226), (4624, 4482863), (5236, 3958892), (6358, 3260264), (6664, 3110558), (8092, 2561636), (8317, 2492336), (8624, 2403613), (9163, 2262224), (10472, 1979446), (12716, 1630132), (13328, 1555279), (14161, 1463792), (16184, 1280818), (16634, 1246168), (18326, 1131112), (20944, 989723), (22253, 931504), (25432, 815066), (28322, 731896), (32368, 640409), (33268, 623084), (36652, 565556), (44506, 465752), (50864, 407533), (56644, 365948), (58219, 356048), (66536, 311542), (73304, 282778), (89012, 232876), (91487, 226576), (113288, 182974), (116438, 178024), (133072, 155771), (141389, 146608)]