20816137440

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{1031}}^1\times {\mathrm{2003}}^1$

素因数の和:3062

約数の個数: 288

約数和(自身を含む): 81302247936

約数和(自身を除く): 60486110496

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1031, 1120, 1260, 1440, 1680, 2003, 2016, 2062, 2520, 3093, 3360, 4006, 4124, 5040, 5155, 6009, 6186, 7217, 8012, 8248, 9279, 10015, 10080, 10310, 12018, 12372, 14021, 14434, 15465, 16024, 16496, 18027, 18558, 20030, 20620, 21651, 24036, 24744, 28042, 28868, 30045, 30930, 32048, 32992, 36054, 36085, 37116, 40060, 41240, 42063, 43302, 46395, 48072, 49488, 56084, 57736, 60090, 61860, 64096, 64953, 70105, 72108, 72170, 74232, 80120, 82480, 84126, 86604, 90135, 92790, 96144, 98976, 108255, 112168, 115472, 120180, 123720, 126189, 129906, 140210, 144216, 144340, 148464, 160240, 164960, 168252, 173208, 180270, 185580, 192288, 210315, 216510, 224336, 230944, 240360, 247440, 252378, 259812, 280420, 288432, 288680, 296928, 320480, 324765, 336504, 346416, 360540, 371160, 420630, 433020, 448672, 480720, 494880, 504756, 519624, 560840, 576864, 577360, 630945, 649530, 673008, 692832, 721080, 742320, 841260, 866040, 961440, 1009512, 1039248, 1121680, 1154720, 1261890, 1299060, 1346016, 1442160, 1484640, 1682520, 1732080, 2019024, 2065093, 2078496, 2243360, 2523780, 2598120, 2884320, 3365040, 3464160, 4038048, 4130186, 5047560, 5196240, 6195279, 6730080, 8260372, 10095120, 10325465, 10392480, 12390558, 14455651, 16520744, 18585837, 20190240, 20650930, 24781116, 28911302, 30976395, 33041488, 37171674, 41301860, 43366953, 49562232, 57822604, 61952790, 66082976, 72278255, 74343348, 82603720, 86733906, 92929185, 99124464, 115645208, 123905580, 130100859, 144556510, 148686696, 165207440, 173467812, 185858370, 198248928, 216834765, 231290416, 247811160, 260201718, 289113020, 297373392, 330414880, 346935624, 371716740, 433669530, 462580832, 495622320, 520403436, 578226040, 594746784, 650504295, 693871248, 743433480, 867339060, 991244640, 1040806872, 1156452080, 1301008590, 1387742496, 1486866960, 1734678120, 2081613744, 2312904160, 2602017180, 2973733920, 3469356240, 4163227488, 5204034360, 6938712480, 10408068720, 20816137440]

約数ペア:

[(1, 20816137440), (2, 10408068720), (3, 6938712480), (4, 5204034360), (5, 4163227488), (6, 3469356240), (7, 2973733920), (8, 2602017180), (9, 2312904160), (10, 2081613744), (12, 1734678120), (14, 1486866960), (15, 1387742496), (16, 1301008590), (18, 1156452080), (20, 1040806872), (21, 991244640), (24, 867339060), (28, 743433480), (30, 693871248), (32, 650504295), (35, 594746784), (36, 578226040), (40, 520403436), (42, 495622320), (45, 462580832), (48, 433669530), (56, 371716740), (60, 346935624), (63, 330414880), (70, 297373392), (72, 289113020), (80, 260201718), (84, 247811160), (90, 231290416), (96, 216834765), (105, 198248928), (112, 185858370), (120, 173467812), (126, 165207440), (140, 148686696), (144, 144556510), (160, 130100859), (168, 123905580), (180, 115645208), (210, 99124464), (224, 92929185), (240, 86733906), (252, 82603720), (280, 74343348), (288, 72278255), (315, 66082976), (336, 61952790), (360, 57822604), (420, 49562232), (480, 43366953), (504, 41301860), (560, 37171674), (630, 33041488), (672, 30976395), (720, 28911302), (840, 24781116), (1008, 20650930), (1031, 20190240), (1120, 18585837), (1260, 16520744), (1440, 14455651), (1680, 12390558), (2003, 10392480), (2016, 10325465), (2062, 10095120), (2520, 8260372), (3093, 6730080), (3360, 6195279), (4006, 5196240), (4124, 5047560), (5040, 4130186), (5155, 4038048), (6009, 3464160), (6186, 3365040), (7217, 2884320), (8012, 2598120), (8248, 2523780), (9279, 2243360), (10015, 2078496), (10080, 2065093), (10310, 2019024), (12018, 1732080), (12372, 1682520), (14021, 1484640), (14434, 1442160), (15465, 1346016), (16024, 1299060), (16496, 1261890), (18027, 1154720), (18558, 1121680), (20030, 1039248), (20620, 1009512), (21651, 961440), (24036, 866040), (24744, 841260), (28042, 742320), (28868, 721080), (30045, 692832), (30930, 673008), (32048, 649530), (32992, 630945), (36054, 577360), (36085, 576864), (37116, 560840), (40060, 519624), (41240, 504756), (42063, 494880), (43302, 480720), (46395, 448672), (48072, 433020), (49488, 420630), (56084, 371160), (57736, 360540), (60090, 346416), (61860, 336504), (64096, 324765), (64953, 320480), (70105, 296928), (72108, 288680), (72170, 288432), (74232, 280420), (80120, 259812), (82480, 252378), (84126, 247440), (86604, 240360), (90135, 230944), (92790, 224336), (96144, 216510), (98976, 210315), (108255, 192288), (112168, 185580), (115472, 180270), (120180, 173208), (123720, 168252), (126189, 164960), (129906, 160240), (140210, 148464), (144216, 144340)]