20867692160

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:256

約数の個数: 384

約数和(自身を含む): 60966069120

約数和(自身を除く): 40098376960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 37, 40, 56, 62, 64, 70, 74, 80, 112, 124, 128, 131, 140, 148, 155, 160, 185, 217, 224, 248, 259, 262, 280, 296, 310, 320, 370, 434, 448, 496, 518, 524, 560, 592, 620, 640, 655, 740, 868, 896, 917, 961, 992, 1036, 1048, 1085, 1120, 1147, 1184, 1240, 1295, 1310, 1480, 1736, 1834, 1922, 1984, 2072, 2096, 2170, 2240, 2294, 2368, 2480, 2590, 2620, 2960, 3472, 3668, 3844, 3968, 4061, 4144, 4192, 4340, 4480, 4585, 4588, 4736, 4805, 4847, 4960, 5180, 5240, 5735, 5920, 6727, 6944, 7336, 7688, 8029, 8122, 8288, 8384, 8680, 9170, 9176, 9610, 9694, 9920, 10360, 10480, 11470, 11840, 13454, 13888, 14672, 15376, 16058, 16244, 16576, 16768, 17360, 18340, 18352, 19220, 19388, 19840, 20305, 20720, 20960, 22940, 23680, 24235, 26908, 27776, 28427, 29344, 30752, 32116, 32488, 33152, 33635, 33929, 34720, 35557, 36680, 36704, 38440, 38776, 40145, 40610, 41440, 41920, 45880, 48470, 53816, 56854, 58688, 61504, 64232, 64976, 67270, 67858, 69440, 71114, 73360, 73408, 76880, 77552, 80290, 81220, 82880, 83840, 91760, 96940, 107632, 113708, 117376, 123008, 125891, 128464, 129952, 134540, 135716, 138880, 142135, 142228, 146720, 146816, 150257, 153760, 155104, 160580, 162440, 165760, 169645, 177785, 183520, 193880, 215264, 227416, 248899, 251782, 256928, 259904, 269080, 271432, 284270, 284456, 293440, 300514, 307520, 310208, 321160, 324880, 339290, 355570, 367040, 387760, 430528, 454832, 497798, 503564, 513856, 519808, 538160, 542864, 568540, 568912, 586880, 601028, 615040, 620416, 629455, 642320, 649760, 678580, 711140, 734080, 751285, 775520, 861056, 881237, 909664, 995596, 1007128, 1027712, 1051799, 1076320, 1085728, 1137080, 1137824, 1202056, 1244495, 1258910, 1284640, 1299520, 1357160, 1422280, 1502570, 1551040, 1762474, 1819328, 1991192, 2014256, 2103598, 2152640, 2171456, 2274160, 2275648, 2404112, 2488990, 2517820, 2569280, 2599040, 2714320, 2844560, 3005140, 3102080, 3524948, 3638656, 3982384, 4028512, 4207196, 4305280, 4342912, 4406185, 4548320, 4551296, 4657967, 4808224, 4977980, 5035640, 5138560, 5258995, 5428640, 5689120, 6010280, 7049896, 7964768, 8057024, 8414392, 8812370, 9096640, 9315934, 9616448, 9955960, 10071280, 10517990, 10857280, 11378240, 12020560, 14099792, 15929536, 16114048, 16828784, 17624740, 18193280, 18631868, 19232896, 19911920, 20142560, 21035980, 21714560, 22756480, 23289835, 24041120, 28199584, 31859072, 32605769, 33657568, 35249480, 37263736, 39823840, 40285120, 42071960, 46579670, 48082240, 56399168, 65211538, 67315136, 70498960, 74527472, 79647680, 80570240, 84143920, 93159340, 96164480, 112798336, 130423076, 134630272, 140997920, 149054944, 159295360, 163028845, 168287840, 186318680, 260846152, 281995840, 298109888, 326057690, 336575680, 372637360, 521692304, 563991680, 596219776, 652115380, 673151360, 745274720, 1043384608, 1304230760, 1490549440, 2086769216, 2608461520, 2981098880, 4173538432, 5216923040, 10433846080, 20867692160]

約数ペア:

[(1, 20867692160), (2, 10433846080), (4, 5216923040), (5, 4173538432), (7, 2981098880), (8, 2608461520), (10, 2086769216), (14, 1490549440), (16, 1304230760), (20, 1043384608), (28, 745274720), (31, 673151360), (32, 652115380), (35, 596219776), (37, 563991680), (40, 521692304), (56, 372637360), (62, 336575680), (64, 326057690), (70, 298109888), (74, 281995840), (80, 260846152), (112, 186318680), (124, 168287840), (128, 163028845), (131, 159295360), (140, 149054944), (148, 140997920), (155, 134630272), (160, 130423076), (185, 112798336), (217, 96164480), (224, 93159340), (248, 84143920), (259, 80570240), (262, 79647680), (280, 74527472), (296, 70498960), (310, 67315136), (320, 65211538), (370, 56399168), (434, 48082240), (448, 46579670), (496, 42071960), (518, 40285120), (524, 39823840), (560, 37263736), (592, 35249480), (620, 33657568), (640, 32605769), (655, 31859072), (740, 28199584), (868, 24041120), (896, 23289835), (917, 22756480), (961, 21714560), (992, 21035980), (1036, 20142560), (1048, 19911920), (1085, 19232896), (1120, 18631868), (1147, 18193280), (1184, 17624740), (1240, 16828784), (1295, 16114048), (1310, 15929536), (1480, 14099792), (1736, 12020560), (1834, 11378240), (1922, 10857280), (1984, 10517990), (2072, 10071280), (2096, 9955960), (2170, 9616448), (2240, 9315934), (2294, 9096640), (2368, 8812370), (2480, 8414392), (2590, 8057024), (2620, 7964768), (2960, 7049896), (3472, 6010280), (3668, 5689120), (3844, 5428640), (3968, 5258995), (4061, 5138560), (4144, 5035640), (4192, 4977980), (4340, 4808224), (4480, 4657967), (4585, 4551296), (4588, 4548320), (4736, 4406185), (4805, 4342912), (4847, 4305280), (4960, 4207196), (5180, 4028512), (5240, 3982384), (5735, 3638656), (5920, 3524948), (6727, 3102080), (6944, 3005140), (7336, 2844560), (7688, 2714320), (8029, 2599040), (8122, 2569280), (8288, 2517820), (8384, 2488990), (8680, 2404112), (9170, 2275648), (9176, 2274160), (9610, 2171456), (9694, 2152640), (9920, 2103598), (10360, 2014256), (10480, 1991192), (11470, 1819328), (11840, 1762474), (13454, 1551040), (13888, 1502570), (14672, 1422280), (15376, 1357160), (16058, 1299520), (16244, 1284640), (16576, 1258910), (16768, 1244495), (17360, 1202056), (18340, 1137824), (18352, 1137080), (19220, 1085728), (19388, 1076320), (19840, 1051799), (20305, 1027712), (20720, 1007128), (20960, 995596), (22940, 909664), (23680, 881237), (24235, 861056), (26908, 775520), (27776, 751285), (28427, 734080), (29344, 711140), (30752, 678580), (32116, 649760), (32488, 642320), (33152, 629455), (33635, 620416), (33929, 615040), (34720, 601028), (35557, 586880), (36680, 568912), (36704, 568540), (38440, 542864), (38776, 538160), (40145, 519808), (40610, 513856), (41440, 503564), (41920, 497798), (45880, 454832), (48470, 430528), (53816, 387760), (56854, 367040), (58688, 355570), (61504, 339290), (64232, 324880), (64976, 321160), (67270, 310208), (67858, 307520), (69440, 300514), (71114, 293440), (73360, 284456), (73408, 284270), (76880, 271432), (77552, 269080), (80290, 259904), (81220, 256928), (82880, 251782), (83840, 248899), (91760, 227416), (96940, 215264), (107632, 193880), (113708, 183520), (117376, 177785), (123008, 169645), (125891, 165760), (128464, 162440), (129952, 160580), (134540, 155104), (135716, 153760), (138880, 150257), (142135, 146816), (142228, 146720)]