21971416320

素因数分解:

$2^8\times 3^3\times 5^1\times 7^1\times {\mathrm{90821}}^1$

素因数の和:90858

約数の個数: 288

約数和(自身を含む): 89107280640

約数和(自身を除く): 67135864320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 256, 270, 280, 288, 315, 320, 336, 360, 378, 384, 420, 432, 448, 480, 504, 540, 560, 576, 630, 640, 672, 720, 756, 768, 840, 864, 896, 945, 960, 1008, 1080, 1120, 1152, 1260, 1280, 1344, 1440, 1512, 1680, 1728, 1792, 1890, 1920, 2016, 2160, 2240, 2304, 2520, 2688, 2880, 3024, 3360, 3456, 3780, 3840, 4032, 4320, 4480, 5040, 5376, 5760, 6048, 6720, 6912, 7560, 8064, 8640, 8960, 10080, 11520, 12096, 13440, 15120, 16128, 17280, 20160, 24192, 26880, 30240, 34560, 40320, 48384, 60480, 80640, 90821, 120960, 181642, 241920, 272463, 363284, 454105, 544926, 635747, 726568, 817389, 908210, 1089852, 1271494, 1362315, 1453136, 1634778, 1816420, 1907241, 2179704, 2452167, 2542988, 2724630, 2906272, 3178735, 3269556, 3632840, 3814482, 4086945, 4359408, 4904334, 5085976, 5449260, 5721723, 5812544, 6357470, 6539112, 7265680, 7628964, 8173890, 8718816, 9536205, 9808668, 10171952, 10898520, 11443446, 11625088, 12260835, 12714940, 13078224, 14531360, 15257928, 16347780, 17165169, 17437632, 19072410, 19617336, 20343904, 21797040, 22886892, 23250176, 24521670, 25429880, 26156448, 28608615, 29062720, 30515856, 32695560, 34330338, 34875264, 38144820, 39234672, 40687808, 43594080, 45773784, 49043340, 50859760, 52312896, 57217230, 58125440, 61031712, 65391120, 68660676, 69750528, 76289640, 78469344, 81375616, 85825845, 87188160, 91547568, 98086680, 101719520, 104625792, 114434460, 116250880, 122063424, 130782240, 137321352, 152579280, 156938688, 162751232, 171651690, 174376320, 183095136, 196173360, 203439040, 209251584, 228868920, 244126848, 261564480, 274642704, 305158560, 313877376, 343303380, 348752640, 366190272, 392346720, 406878080, 457737840, 488253696, 523128960, 549285408, 610317120, 627754752, 686606760, 732380544, 784693440, 813756160, 915475680, 1046257920, 1098570816, 1220634240, 1373213520, 1464761088, 1569386880, 1830951360, 2197141632, 2441268480, 2746427040, 3138773760, 3661902720, 4394283264, 5492854080, 7323805440, 10985708160, 21971416320]

約数ペア:

[(1, 21971416320), (2, 10985708160), (3, 7323805440), (4, 5492854080), (5, 4394283264), (6, 3661902720), (7, 3138773760), (8, 2746427040), (9, 2441268480), (10, 2197141632), (12, 1830951360), (14, 1569386880), (15, 1464761088), (16, 1373213520), (18, 1220634240), (20, 1098570816), (21, 1046257920), (24, 915475680), (27, 813756160), (28, 784693440), (30, 732380544), (32, 686606760), (35, 627754752), (36, 610317120), (40, 549285408), (42, 523128960), (45, 488253696), (48, 457737840), (54, 406878080), (56, 392346720), (60, 366190272), (63, 348752640), (64, 343303380), (70, 313877376), (72, 305158560), (80, 274642704), (84, 261564480), (90, 244126848), (96, 228868920), (105, 209251584), (108, 203439040), (112, 196173360), (120, 183095136), (126, 174376320), (128, 171651690), (135, 162751232), (140, 156938688), (144, 152579280), (160, 137321352), (168, 130782240), (180, 122063424), (189, 116250880), (192, 114434460), (210, 104625792), (216, 101719520), (224, 98086680), (240, 91547568), (252, 87188160), (256, 85825845), (270, 81375616), (280, 78469344), (288, 76289640), (315, 69750528), (320, 68660676), (336, 65391120), (360, 61031712), (378, 58125440), (384, 57217230), (420, 52312896), (432, 50859760), (448, 49043340), (480, 45773784), (504, 43594080), (540, 40687808), (560, 39234672), (576, 38144820), (630, 34875264), (640, 34330338), (672, 32695560), (720, 30515856), (756, 29062720), (768, 28608615), (840, 26156448), (864, 25429880), (896, 24521670), (945, 23250176), (960, 22886892), (1008, 21797040), (1080, 20343904), (1120, 19617336), (1152, 19072410), (1260, 17437632), (1280, 17165169), (1344, 16347780), (1440, 15257928), (1512, 14531360), (1680, 13078224), (1728, 12714940), (1792, 12260835), (1890, 11625088), (1920, 11443446), (2016, 10898520), (2160, 10171952), (2240, 9808668), (2304, 9536205), (2520, 8718816), (2688, 8173890), (2880, 7628964), (3024, 7265680), (3360, 6539112), (3456, 6357470), (3780, 5812544), (3840, 5721723), (4032, 5449260), (4320, 5085976), (4480, 4904334), (5040, 4359408), (5376, 4086945), (5760, 3814482), (6048, 3632840), (6720, 3269556), (6912, 3178735), (7560, 2906272), (8064, 2724630), (8640, 2542988), (8960, 2452167), (10080, 2179704), (11520, 1907241), (12096, 1816420), (13440, 1634778), (15120, 1453136), (16128, 1362315), (17280, 1271494), (20160, 1089852), (24192, 908210), (26880, 817389), (30240, 726568), (34560, 635747), (40320, 544926), (48384, 454105), (60480, 363284), (80640, 272463), (90821, 241920), (120960, 181642)]