2181528720

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{647}}^1$

素因数の和:899

約数の個数: 320

約数和(自身を含む): 8639447040

約数和(自身を除く): 6457918320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 223, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 446, 504, 540, 560, 630, 647, 669, 720, 756, 840, 892, 945, 1008, 1080, 1115, 1260, 1294, 1338, 1512, 1561, 1680, 1784, 1890, 1941, 2007, 2160, 2230, 2520, 2588, 2676, 3024, 3122, 3235, 3345, 3568, 3780, 3882, 4014, 4460, 4529, 4683, 5040, 5176, 5352, 5823, 6021, 6244, 6470, 6690, 7560, 7764, 7805, 8028, 8920, 9058, 9366, 9705, 10035, 10352, 10704, 11646, 12042, 12488, 12940, 13380, 13587, 14049, 15120, 15528, 15610, 16056, 17469, 17840, 18116, 18732, 19410, 20070, 22645, 23292, 23415, 24084, 24976, 25880, 26760, 27174, 28098, 29115, 30105, 31056, 31220, 32112, 34938, 36232, 37464, 38820, 40140, 40761, 42147, 45290, 46584, 46830, 48168, 51760, 53520, 54348, 56196, 58230, 60210, 62440, 67935, 69876, 70245, 72464, 74928, 77640, 80280, 81522, 84294, 87345, 90580, 93168, 93660, 96336, 108696, 112392, 116460, 120420, 122283, 124880, 135870, 139752, 140490, 144281, 155280, 160560, 163044, 168588, 174690, 181160, 187320, 203805, 210735, 217392, 224784, 232920, 240840, 244566, 271740, 279504, 280980, 288562, 326088, 337176, 349380, 362320, 374640, 407610, 421470, 432843, 465840, 481680, 489132, 543480, 561960, 577124, 611415, 652176, 674352, 698760, 721405, 815220, 842940, 865686, 978264, 1009967, 1086960, 1123920, 1154248, 1222830, 1298529, 1397520, 1442810, 1630440, 1685880, 1731372, 1956528, 2019934, 2164215, 2308496, 2445660, 2597058, 2885620, 3029901, 3260880, 3371760, 3462744, 3895587, 4039868, 4328430, 4891320, 5049835, 5194116, 5771240, 6059802, 6492645, 6925488, 7791174, 8079736, 8656860, 9089703, 9782640, 10099670, 10388232, 11542480, 12119604, 12985290, 15149505, 15582348, 16159472, 17313720, 18179406, 19477935, 20199340, 20776464, 24239208, 25970580, 27269109, 30299010, 31164696, 34627440, 36358812, 38955870, 40398680, 45448515, 48478416, 51941160, 54538218, 60598020, 62329392, 72717624, 77911740, 80797360, 90897030, 103882320, 109076436, 121196040, 136345545, 145435248, 155823480, 181794060, 218152872, 242392080, 272691090, 311646960, 363588120, 436305744, 545382180, 727176240, 1090764360, 2181528720]

約数ペア:

[(1, 2181528720), (2, 1090764360), (3, 727176240), (4, 545382180), (5, 436305744), (6, 363588120), (7, 311646960), (8, 272691090), (9, 242392080), (10, 218152872), (12, 181794060), (14, 155823480), (15, 145435248), (16, 136345545), (18, 121196040), (20, 109076436), (21, 103882320), (24, 90897030), (27, 80797360), (28, 77911740), (30, 72717624), (35, 62329392), (36, 60598020), (40, 54538218), (42, 51941160), (45, 48478416), (48, 45448515), (54, 40398680), (56, 38955870), (60, 36358812), (63, 34627440), (70, 31164696), (72, 30299010), (80, 27269109), (84, 25970580), (90, 24239208), (105, 20776464), (108, 20199340), (112, 19477935), (120, 18179406), (126, 17313720), (135, 16159472), (140, 15582348), (144, 15149505), (168, 12985290), (180, 12119604), (189, 11542480), (210, 10388232), (216, 10099670), (223, 9782640), (240, 9089703), (252, 8656860), (270, 8079736), (280, 7791174), (315, 6925488), (336, 6492645), (360, 6059802), (378, 5771240), (420, 5194116), (432, 5049835), (446, 4891320), (504, 4328430), (540, 4039868), (560, 3895587), (630, 3462744), (647, 3371760), (669, 3260880), (720, 3029901), (756, 2885620), (840, 2597058), (892, 2445660), (945, 2308496), (1008, 2164215), (1080, 2019934), (1115, 1956528), (1260, 1731372), (1294, 1685880), (1338, 1630440), (1512, 1442810), (1561, 1397520), (1680, 1298529), (1784, 1222830), (1890, 1154248), (1941, 1123920), (2007, 1086960), (2160, 1009967), (2230, 978264), (2520, 865686), (2588, 842940), (2676, 815220), (3024, 721405), (3122, 698760), (3235, 674352), (3345, 652176), (3568, 611415), (3780, 577124), (3882, 561960), (4014, 543480), (4460, 489132), (4529, 481680), (4683, 465840), (5040, 432843), (5176, 421470), (5352, 407610), (5823, 374640), (6021, 362320), (6244, 349380), (6470, 337176), (6690, 326088), (7560, 288562), (7764, 280980), (7805, 279504), (8028, 271740), (8920, 244566), (9058, 240840), (9366, 232920), (9705, 224784), (10035, 217392), (10352, 210735), (10704, 203805), (11646, 187320), (12042, 181160), (12488, 174690), (12940, 168588), (13380, 163044), (13587, 160560), (14049, 155280), (15120, 144281), (15528, 140490), (15610, 139752), (16056, 135870), (17469, 124880), (17840, 122283), (18116, 120420), (18732, 116460), (19410, 112392), (20070, 108696), (22645, 96336), (23292, 93660), (23415, 93168), (24084, 90580), (24976, 87345), (25880, 84294), (26760, 81522), (27174, 80280), (28098, 77640), (29115, 74928), (30105, 72464), (31056, 70245), (31220, 69876), (32112, 67935), (34938, 62440), (36232, 60210), (37464, 58230), (38820, 56196), (40140, 54348), (40761, 53520), (42147, 51760), (45290, 48168), (46584, 46830)]