1820175984

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{307}}^1$

素因数の和:548

約数の個数: 240

約数和(自身を含む): 5898372480

約数和(自身を除く): 4078196496

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 19, 22, 24, 33, 36, 38, 44, 48, 57, 66, 72, 76, 88, 99, 114, 132, 144, 152, 171, 176, 197, 198, 209, 228, 264, 304, 307, 342, 394, 396, 418, 456, 528, 591, 614, 627, 684, 788, 792, 836, 912, 921, 1182, 1228, 1254, 1368, 1576, 1584, 1672, 1773, 1842, 1881, 2167, 2364, 2456, 2508, 2736, 2763, 3152, 3344, 3377, 3546, 3684, 3743, 3762, 4334, 4728, 4912, 5016, 5526, 5833, 6501, 6754, 7092, 7368, 7486, 7524, 8668, 9456, 10032, 10131, 11052, 11229, 11666, 13002, 13508, 14184, 14736, 14972, 15048, 17336, 17499, 19503, 20262, 22104, 22458, 23332, 26004, 27016, 28368, 29944, 30096, 30393, 33687, 34672, 34998, 39006, 40524, 41173, 44208, 44916, 46664, 52008, 52497, 54032, 59888, 60479, 60786, 64163, 67374, 69996, 78012, 81048, 82346, 89832, 93328, 104016, 104994, 120958, 121572, 123519, 128326, 134748, 139992, 156024, 162096, 164692, 179664, 181437, 192489, 209988, 241916, 243144, 247038, 256652, 269496, 279984, 312048, 329384, 362874, 370557, 384978, 419976, 483832, 486288, 494076, 513304, 538992, 544311, 577467, 658768, 665269, 725748, 741114, 769956, 839952, 967664, 988152, 1026608, 1088622, 1149101, 1154934, 1330538, 1451496, 1482228, 1539912, 1976304, 1995807, 2177244, 2298202, 2309868, 2661076, 2902992, 2964456, 3079824, 3447303, 3991614, 4354488, 4596404, 4619736, 5322152, 5928912, 5987421, 6894606, 7983228, 8708976, 9192808, 9239472, 10341909, 10644304, 11974842, 12640111, 13789212, 15966456, 18385616, 20683818, 23949684, 25280222, 27578424, 31932912, 37920333, 41367636, 47899368, 50560444, 55156848, 75840666, 82735272, 95798736, 101120888, 113760999, 151681332, 165470544, 202241776, 227521998, 303362664, 455043996, 606725328, 910087992, 1820175984]

約数ペア:

[(1, 1820175984), (2, 910087992), (3, 606725328), (4, 455043996), (6, 303362664), (8, 227521998), (9, 202241776), (11, 165470544), (12, 151681332), (16, 113760999), (18, 101120888), (19, 95798736), (22, 82735272), (24, 75840666), (33, 55156848), (36, 50560444), (38, 47899368), (44, 41367636), (48, 37920333), (57, 31932912), (66, 27578424), (72, 25280222), (76, 23949684), (88, 20683818), (99, 18385616), (114, 15966456), (132, 13789212), (144, 12640111), (152, 11974842), (171, 10644304), (176, 10341909), (197, 9239472), (198, 9192808), (209, 8708976), (228, 7983228), (264, 6894606), (304, 5987421), (307, 5928912), (342, 5322152), (394, 4619736), (396, 4596404), (418, 4354488), (456, 3991614), (528, 3447303), (591, 3079824), (614, 2964456), (627, 2902992), (684, 2661076), (788, 2309868), (792, 2298202), (836, 2177244), (912, 1995807), (921, 1976304), (1182, 1539912), (1228, 1482228), (1254, 1451496), (1368, 1330538), (1576, 1154934), (1584, 1149101), (1672, 1088622), (1773, 1026608), (1842, 988152), (1881, 967664), (2167, 839952), (2364, 769956), (2456, 741114), (2508, 725748), (2736, 665269), (2763, 658768), (3152, 577467), (3344, 544311), (3377, 538992), (3546, 513304), (3684, 494076), (3743, 486288), (3762, 483832), (4334, 419976), (4728, 384978), (4912, 370557), (5016, 362874), (5526, 329384), (5833, 312048), (6501, 279984), (6754, 269496), (7092, 256652), (7368, 247038), (7486, 243144), (7524, 241916), (8668, 209988), (9456, 192489), (10032, 181437), (10131, 179664), (11052, 164692), (11229, 162096), (11666, 156024), (13002, 139992), (13508, 134748), (14184, 128326), (14736, 123519), (14972, 121572), (15048, 120958), (17336, 104994), (17499, 104016), (19503, 93328), (20262, 89832), (22104, 82346), (22458, 81048), (23332, 78012), (26004, 69996), (27016, 67374), (28368, 64163), (29944, 60786), (30096, 60479), (30393, 59888), (33687, 54032), (34672, 52497), (34998, 52008), (39006, 46664), (40524, 44916), (41173, 44208)]