21071957760

素因数分解:

$2^8\times 3^3\times 5^1\times 7^1\times {\mathrm{87103}}^1$

素因数の和:87140

約数の個数: 288

約数和(自身を含む): 85459476480

約数和(自身を除く): 64387518720

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, 87103, 120960, 174206, 241920, 261309, 348412, 435515, 522618, 609721, 696824, 783927, 871030, 1045236, 1219442, 1306545, 1393648, 1567854, 1742060, 1829163, 2090472, 2351781, 2438884, 2613090, 2787296, 3048605, 3135708, 3484120, 3658326, 3919635, 4180944, 4703562, 4877768, 5226180, 5487489, 5574592, 6097210, 6271416, 6968240, 7316652, 7839270, 8361888, 9145815, 9407124, 9755536, 10452360, 10974978, 11149184, 11758905, 12194420, 12542832, 13936480, 14633304, 15678540, 16462467, 16723776, 18291630, 18814248, 19511072, 20904720, 21949956, 22298368, 23517810, 24388840, 25085664, 27437445, 27872960, 29266608, 31357080, 32924934, 33447552, 36583260, 37628496, 39022144, 41809440, 43899912, 47035620, 48777680, 50171328, 54874890, 55745920, 58533216, 62714160, 65849868, 66895104, 73166520, 75256992, 78044288, 82312335, 83618880, 87799824, 94071240, 97555360, 100342656, 109749780, 111491840, 117066432, 125428320, 131699736, 146333040, 150513984, 156088576, 164624670, 167237760, 175599648, 188142480, 195110720, 200685312, 219499560, 234132864, 250856640, 263399472, 292666080, 301027968, 329249340, 334475520, 351199296, 376284960, 390221440, 438999120, 468265728, 501713280, 526798944, 585332160, 602055936, 658498680, 702398592, 752569920, 780442880, 877998240, 1003426560, 1053597888, 1170664320, 1316997360, 1404797184, 1505139840, 1755996480, 2107195776, 2341328640, 2633994720, 3010279680, 3511992960, 4214391552, 5267989440, 7023985920, 10535978880, 21071957760]

約数ペア:

[(1, 21071957760), (2, 10535978880), (3, 7023985920), (4, 5267989440), (5, 4214391552), (6, 3511992960), (7, 3010279680), (8, 2633994720), (9, 2341328640), (10, 2107195776), (12, 1755996480), (14, 1505139840), (15, 1404797184), (16, 1316997360), (18, 1170664320), (20, 1053597888), (21, 1003426560), (24, 877998240), (27, 780442880), (28, 752569920), (30, 702398592), (32, 658498680), (35, 602055936), (36, 585332160), (40, 526798944), (42, 501713280), (45, 468265728), (48, 438999120), (54, 390221440), (56, 376284960), (60, 351199296), (63, 334475520), (64, 329249340), (70, 301027968), (72, 292666080), (80, 263399472), (84, 250856640), (90, 234132864), (96, 219499560), (105, 200685312), (108, 195110720), (112, 188142480), (120, 175599648), (126, 167237760), (128, 164624670), (135, 156088576), (140, 150513984), (144, 146333040), (160, 131699736), (168, 125428320), (180, 117066432), (189, 111491840), (192, 109749780), (210, 100342656), (216, 97555360), (224, 94071240), (240, 87799824), (252, 83618880), (256, 82312335), (270, 78044288), (280, 75256992), (288, 73166520), (315, 66895104), (320, 65849868), (336, 62714160), (360, 58533216), (378, 55745920), (384, 54874890), (420, 50171328), (432, 48777680), (448, 47035620), (480, 43899912), (504, 41809440), (540, 39022144), (560, 37628496), (576, 36583260), (630, 33447552), (640, 32924934), (672, 31357080), (720, 29266608), (756, 27872960), (768, 27437445), (840, 25085664), (864, 24388840), (896, 23517810), (945, 22298368), (960, 21949956), (1008, 20904720), (1080, 19511072), (1120, 18814248), (1152, 18291630), (1260, 16723776), (1280, 16462467), (1344, 15678540), (1440, 14633304), (1512, 13936480), (1680, 12542832), (1728, 12194420), (1792, 11758905), (1890, 11149184), (1920, 10974978), (2016, 10452360), (2160, 9755536), (2240, 9407124), (2304, 9145815), (2520, 8361888), (2688, 7839270), (2880, 7316652), (3024, 6968240), (3360, 6271416), (3456, 6097210), (3780, 5574592), (3840, 5487489), (4032, 5226180), (4320, 4877768), (4480, 4703562), (5040, 4180944), (5376, 3919635), (5760, 3658326), (6048, 3484120), (6720, 3135708), (6912, 3048605), (7560, 2787296), (8064, 2613090), (8640, 2438884), (8960, 2351781), (10080, 2090472), (11520, 1829163), (12096, 1742060), (13440, 1567854), (15120, 1393648), (16128, 1306545), (17280, 1219442), (20160, 1045236), (24192, 871030), (26880, 783927), (30240, 696824), (34560, 609721), (40320, 522618), (48384, 435515), (60480, 348412), (80640, 261309), (87103, 241920), (120960, 174206)]