20640169088

素因数分解:

$2^7\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1097}}^1$

素因数の和:1235

約数の個数: 256

約数和(自身を含む): 54188144640

約数和(自身を除く): 33547975552

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 23, 28, 32, 44, 46, 56, 64, 77, 83, 88, 92, 112, 128, 154, 161, 166, 176, 184, 224, 253, 308, 322, 332, 352, 368, 448, 506, 581, 616, 644, 664, 704, 736, 896, 913, 1012, 1097, 1162, 1232, 1288, 1328, 1408, 1472, 1771, 1826, 1909, 2024, 2194, 2324, 2464, 2576, 2656, 2944, 3542, 3652, 3818, 4048, 4388, 4648, 4928, 5152, 5312, 6391, 7084, 7304, 7636, 7679, 8096, 8776, 9296, 9856, 10304, 10624, 12067, 12782, 13363, 14168, 14608, 15272, 15358, 16192, 17552, 18592, 20608, 20999, 24134, 25231, 25564, 26726, 28336, 29216, 30544, 30716, 32384, 35104, 37184, 41998, 48268, 50462, 51128, 53452, 56672, 58432, 61088, 61432, 70208, 74368, 83996, 84469, 91051, 96536, 100924, 102256, 106904, 113344, 116864, 122176, 122864, 140416, 146993, 167992, 168938, 176617, 182102, 193072, 201848, 204512, 213808, 226688, 244352, 245728, 277541, 293986, 335984, 337876, 353234, 364204, 386144, 403696, 409024, 427616, 491456, 555082, 587972, 637357, 671968, 675752, 706468, 728408, 772288, 807392, 818048, 855232, 982912, 1001561, 1110164, 1175944, 1274714, 1343936, 1351504, 1412936, 1456816, 1544576, 1614784, 1710464, 1942787, 2003122, 2094173, 2220328, 2351888, 2549428, 2687872, 2703008, 2825872, 2913632, 3229568, 3885574, 4006244, 4188346, 4440656, 4703776, 5098856, 5406016, 5651744, 5827264, 7010927, 7771148, 8012488, 8376692, 8881312, 9407552, 10197712, 10812032, 11303488, 11654528, 14021854, 14659211, 15542296, 16024976, 16753384, 17762624, 18815104, 20395424, 22606976, 23035903, 28043708, 29318422, 31084592, 32049952, 33506768, 35525248, 40790848, 46071806, 56087416, 58636844, 62169184, 64099904, 67013536, 81581696, 92143612, 112174832, 117273688, 124338368, 128199808, 134027072, 161251321, 184287224, 224349664, 234547376, 248676736, 268054144, 322502642, 368574448, 448699328, 469094752, 645005284, 737148896, 897398656, 938189504, 1290010568, 1474297792, 1876379008, 2580021136, 2948595584, 5160042272, 10320084544, 20640169088]

約数ペア:

[(1, 20640169088), (2, 10320084544), (4, 5160042272), (7, 2948595584), (8, 2580021136), (11, 1876379008), (14, 1474297792), (16, 1290010568), (22, 938189504), (23, 897398656), (28, 737148896), (32, 645005284), (44, 469094752), (46, 448699328), (56, 368574448), (64, 322502642), (77, 268054144), (83, 248676736), (88, 234547376), (92, 224349664), (112, 184287224), (128, 161251321), (154, 134027072), (161, 128199808), (166, 124338368), (176, 117273688), (184, 112174832), (224, 92143612), (253, 81581696), (308, 67013536), (322, 64099904), (332, 62169184), (352, 58636844), (368, 56087416), (448, 46071806), (506, 40790848), (581, 35525248), (616, 33506768), (644, 32049952), (664, 31084592), (704, 29318422), (736, 28043708), (896, 23035903), (913, 22606976), (1012, 20395424), (1097, 18815104), (1162, 17762624), (1232, 16753384), (1288, 16024976), (1328, 15542296), (1408, 14659211), (1472, 14021854), (1771, 11654528), (1826, 11303488), (1909, 10812032), (2024, 10197712), (2194, 9407552), (2324, 8881312), (2464, 8376692), (2576, 8012488), (2656, 7771148), (2944, 7010927), (3542, 5827264), (3652, 5651744), (3818, 5406016), (4048, 5098856), (4388, 4703776), (4648, 4440656), (4928, 4188346), (5152, 4006244), (5312, 3885574), (6391, 3229568), (7084, 2913632), (7304, 2825872), (7636, 2703008), (7679, 2687872), (8096, 2549428), (8776, 2351888), (9296, 2220328), (9856, 2094173), (10304, 2003122), (10624, 1942787), (12067, 1710464), (12782, 1614784), (13363, 1544576), (14168, 1456816), (14608, 1412936), (15272, 1351504), (15358, 1343936), (16192, 1274714), (17552, 1175944), (18592, 1110164), (20608, 1001561), (20999, 982912), (24134, 855232), (25231, 818048), (25564, 807392), (26726, 772288), (28336, 728408), (29216, 706468), (30544, 675752), (30716, 671968), (32384, 637357), (35104, 587972), (37184, 555082), (41998, 491456), (48268, 427616), (50462, 409024), (51128, 403696), (53452, 386144), (56672, 364204), (58432, 353234), (61088, 337876), (61432, 335984), (70208, 293986), (74368, 277541), (83996, 245728), (84469, 244352), (91051, 226688), (96536, 213808), (100924, 204512), (102256, 201848), (106904, 193072), (113344, 182102), (116864, 176617), (122176, 168938), (122864, 167992), (140416, 146993)]