20906785872

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{1129}}^1\times {\mathrm{18371}}^1$

素因数の和:19521

約数の個数: 120

約数和(自身を含む): 66931400640

約数和(自身を除く): 46024614768

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008, 1129, 2258, 3387, 4516, 6774, 7903, 9032, 10161, 13548, 15806, 18064, 18371, 20322, 23709, 27096, 31612, 36742, 40644, 47418, 54192, 55113, 63224, 71127, 73484, 81288, 94836, 110226, 126448, 128597, 142254, 146968, 162576, 165339, 189672, 220452, 257194, 284508, 293936, 330678, 379344, 385791, 440904, 514388, 569016, 661356, 771582, 881808, 1028776, 1138032, 1157373, 1322712, 1543164, 2057552, 2314746, 2645424, 3086328, 4629492, 6172656, 9258984, 18517968, 20740859, 41481718, 62222577, 82963436, 124445154, 145186013, 165926872, 186667731, 248890308, 290372026, 331853744, 373335462, 435558039, 497780616, 580744052, 746670924, 871116078, 995561232, 1161488104, 1306674117, 1493341848, 1742232156, 2322976208, 2613348234, 2986683696, 3484464312, 5226696468, 6968928624, 10453392936, 20906785872]

約数ペア:

[(1, 20906785872), (2, 10453392936), (3, 6968928624), (4, 5226696468), (6, 3484464312), (7, 2986683696), (8, 2613348234), (9, 2322976208), (12, 1742232156), (14, 1493341848), (16, 1306674117), (18, 1161488104), (21, 995561232), (24, 871116078), (28, 746670924), (36, 580744052), (42, 497780616), (48, 435558039), (56, 373335462), (63, 331853744), (72, 290372026), (84, 248890308), (112, 186667731), (126, 165926872), (144, 145186013), (168, 124445154), (252, 82963436), (336, 62222577), (504, 41481718), (1008, 20740859), (1129, 18517968), (2258, 9258984), (3387, 6172656), (4516, 4629492), (6774, 3086328), (7903, 2645424), (9032, 2314746), (10161, 2057552), (13548, 1543164), (15806, 1322712), (18064, 1157373), (18371, 1138032), (20322, 1028776), (23709, 881808), (27096, 771582), (31612, 661356), (36742, 569016), (40644, 514388), (47418, 440904), (54192, 385791), (55113, 379344), (63224, 330678), (71127, 293936), (73484, 284508), (81288, 257194), (94836, 220452), (110226, 189672), (126448, 165339), (128597, 162576), (142254, 146968)]