20128666880

素因数分解:

$2^8\times 5^1\times 7^3\times {\mathrm{19}}^2\times {\mathrm{127}}^1$

素因数の和:207

約数の個数: 432

約数和(自身を含む): 59809075200

約数和(自身を除く): 39680408320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 49, 56, 64, 70, 76, 80, 95, 98, 112, 127, 128, 133, 140, 152, 160, 190, 196, 224, 245, 254, 256, 266, 280, 304, 320, 343, 361, 380, 392, 448, 490, 508, 532, 560, 608, 635, 640, 665, 686, 722, 760, 784, 889, 896, 931, 980, 1016, 1064, 1120, 1216, 1270, 1280, 1330, 1372, 1444, 1520, 1568, 1715, 1778, 1792, 1805, 1862, 1960, 2032, 2128, 2240, 2413, 2432, 2527, 2540, 2660, 2744, 2888, 3040, 3136, 3430, 3556, 3610, 3724, 3920, 4064, 4256, 4445, 4480, 4655, 4826, 4864, 5054, 5080, 5320, 5488, 5776, 6080, 6223, 6272, 6517, 6860, 7112, 7220, 7448, 7840, 8128, 8512, 8890, 8960, 9310, 9652, 10108, 10160, 10640, 10976, 11552, 12065, 12160, 12446, 12544, 12635, 13034, 13720, 14224, 14440, 14896, 15680, 16256, 16891, 17024, 17689, 17780, 18620, 19304, 20216, 20320, 21280, 21952, 23104, 24130, 24320, 24892, 25270, 26068, 27440, 28448, 28880, 29792, 31115, 31360, 32512, 32585, 33782, 34048, 35378, 35560, 37240, 38608, 40432, 40640, 42560, 43561, 43904, 45847, 46208, 48260, 49784, 50540, 52136, 54880, 56896, 57760, 59584, 62230, 62720, 65170, 67564, 70756, 71120, 74480, 77216, 80864, 81280, 84455, 85120, 87122, 87808, 88445, 91694, 92416, 96520, 99568, 101080, 104272, 109760, 113792, 115520, 118237, 119168, 123823, 124460, 130340, 135128, 141512, 142240, 148960, 154432, 161728, 162560, 168910, 170240, 174244, 176890, 183388, 193040, 199136, 202160, 208544, 217805, 219520, 227584, 229235, 231040, 236474, 238336, 247646, 248920, 260680, 270256, 283024, 284480, 297920, 308864, 320929, 323456, 337820, 348488, 353780, 366776, 386080, 398272, 404320, 417088, 435610, 439040, 458470, 462080, 472948, 495292, 497840, 521360, 540512, 566048, 568960, 591185, 595840, 617728, 619115, 641858, 646912, 675640, 696976, 707560, 733552, 772160, 796544, 808640, 827659, 834176, 871220, 916940, 945896, 990584, 995680, 1042720, 1081024, 1132096, 1137920, 1182370, 1191680, 1238230, 1283716, 1351280, 1393952, 1415120, 1467104, 1544320, 1593088, 1604645, 1617280, 1655318, 1668352, 1742440, 1833880, 1891792, 1981168, 1991360, 2085440, 2162048, 2246503, 2264192, 2364740, 2476460, 2567432, 2702560, 2787904, 2830240, 2934208, 3088640, 3209290, 3234560, 3310636, 3484880, 3667760, 3783584, 3962336, 3982720, 4138295, 4170880, 4324096, 4493006, 4528384, 4729480, 4952920, 5134864, 5405120, 5575808, 5660480, 5868416, 6418580, 6621272, 6969760, 7335520, 7567168, 7924672, 7965440, 8276590, 8341760, 8986012, 9458960, 9905840, 10269728, 10810240, 11151616, 11232515, 11320960, 11736832, 12837160, 13242544, 13939520, 14671040, 15134336, 15725521, 15849344, 16553180, 17972024, 18917920, 19811680, 20539456, 21620480, 22465030, 22641920, 25674320, 26485088, 27879040, 29342080, 30268672, 31451042, 31698688, 33106360, 35944048, 37835840, 39623360, 41078912, 44930060, 51348640, 52970176, 55758080, 58684160, 62902084, 66212720, 71888096, 75671680, 78627605, 79246720, 82157824, 89860120, 102697280, 105940352, 125804168, 132425440, 143776192, 151343360, 157255210, 158493440, 179720240, 205394560, 211880704, 251608336, 264850880, 287552384, 314510420, 359440480, 410789120, 503216672, 529701760, 575104768, 629020840, 718880960, 1006433344, 1059403520, 1258041680, 1437761920, 2012866688, 2516083360, 2875523840, 4025733376, 5032166720, 10064333440, 20128666880]

約数ペア:

[(1, 20128666880), (2, 10064333440), (4, 5032166720), (5, 4025733376), (7, 2875523840), (8, 2516083360), (10, 2012866688), (14, 1437761920), (16, 1258041680), (19, 1059403520), (20, 1006433344), (28, 718880960), (32, 629020840), (35, 575104768), (38, 529701760), (40, 503216672), (49, 410789120), (56, 359440480), (64, 314510420), (70, 287552384), (76, 264850880), (80, 251608336), (95, 211880704), (98, 205394560), (112, 179720240), (127, 158493440), (128, 157255210), (133, 151343360), (140, 143776192), (152, 132425440), (160, 125804168), (190, 105940352), (196, 102697280), (224, 89860120), (245, 82157824), (254, 79246720), (256, 78627605), (266, 75671680), (280, 71888096), (304, 66212720), (320, 62902084), (343, 58684160), (361, 55758080), (380, 52970176), (392, 51348640), (448, 44930060), (490, 41078912), (508, 39623360), (532, 37835840), (560, 35944048), (608, 33106360), (635, 31698688), (640, 31451042), (665, 30268672), (686, 29342080), (722, 27879040), (760, 26485088), (784, 25674320), (889, 22641920), (896, 22465030), (931, 21620480), (980, 20539456), (1016, 19811680), (1064, 18917920), (1120, 17972024), (1216, 16553180), (1270, 15849344), (1280, 15725521), (1330, 15134336), (1372, 14671040), (1444, 13939520), (1520, 13242544), (1568, 12837160), (1715, 11736832), (1778, 11320960), (1792, 11232515), (1805, 11151616), (1862, 10810240), (1960, 10269728), (2032, 9905840), (2128, 9458960), (2240, 8986012), (2413, 8341760), (2432, 8276590), (2527, 7965440), (2540, 7924672), (2660, 7567168), (2744, 7335520), (2888, 6969760), (3040, 6621272), (3136, 6418580), (3430, 5868416), (3556, 5660480), (3610, 5575808), (3724, 5405120), (3920, 5134864), (4064, 4952920), (4256, 4729480), (4445, 4528384), (4480, 4493006), (4655, 4324096), (4826, 4170880), (4864, 4138295), (5054, 3982720), (5080, 3962336), (5320, 3783584), (5488, 3667760), (5776, 3484880), (6080, 3310636), (6223, 3234560), (6272, 3209290), (6517, 3088640), (6860, 2934208), (7112, 2830240), (7220, 2787904), (7448, 2702560), (7840, 2567432), (8128, 2476460), (8512, 2364740), (8890, 2264192), (8960, 2246503), (9310, 2162048), (9652, 2085440), (10108, 1991360), (10160, 1981168), (10640, 1891792), (10976, 1833880), (11552, 1742440), (12065, 1668352), (12160, 1655318), (12446, 1617280), (12544, 1604645), (12635, 1593088), (13034, 1544320), (13720, 1467104), (14224, 1415120), (14440, 1393952), (14896, 1351280), (15680, 1283716), (16256, 1238230), (16891, 1191680), (17024, 1182370), (17689, 1137920), (17780, 1132096), (18620, 1081024), (19304, 1042720), (20216, 995680), (20320, 990584), (21280, 945896), (21952, 916940), (23104, 871220), (24130, 834176), (24320, 827659), (24892, 808640), (25270, 796544), (26068, 772160), (27440, 733552), (28448, 707560), (28880, 696976), (29792, 675640), (31115, 646912), (31360, 641858), (32512, 619115), (32585, 617728), (33782, 595840), (34048, 591185), (35378, 568960), (35560, 566048), (37240, 540512), (38608, 521360), (40432, 497840), (40640, 495292), (42560, 472948), (43561, 462080), (43904, 458470), (45847, 439040), (46208, 435610), (48260, 417088), (49784, 404320), (50540, 398272), (52136, 386080), (54880, 366776), (56896, 353780), (57760, 348488), (59584, 337820), (62230, 323456), (62720, 320929), (65170, 308864), (67564, 297920), (70756, 284480), (71120, 283024), (74480, 270256), (77216, 260680), (80864, 248920), (81280, 247646), (84455, 238336), (85120, 236474), (87122, 231040), (87808, 229235), (88445, 227584), (91694, 219520), (92416, 217805), (96520, 208544), (99568, 202160), (101080, 199136), (104272, 193040), (109760, 183388), (113792, 176890), (115520, 174244), (118237, 170240), (119168, 168910), (123823, 162560), (124460, 161728), (130340, 154432), (135128, 148960), (141512, 142240)]