20718648720

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2897}}^1$

素因数の和:2980

約数の個数: 640

約数和(自身を含む): 91074170880

約数和(自身を除く): 70355522160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 27, 28, 30, 33, 35, 36, 40, 42, 43, 44, 45, 48, 54, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 86, 88, 90, 99, 105, 108, 110, 112, 120, 126, 129, 132, 135, 140, 144, 154, 165, 168, 172, 176, 180, 189, 198, 210, 215, 216, 220, 231, 240, 252, 258, 264, 270, 280, 297, 301, 308, 315, 330, 336, 344, 360, 378, 385, 387, 396, 420, 430, 432, 440, 462, 473, 495, 504, 516, 528, 540, 560, 594, 602, 616, 630, 645, 660, 688, 693, 720, 756, 770, 774, 792, 840, 860, 880, 903, 924, 945, 946, 990, 1008, 1032, 1080, 1155, 1161, 1188, 1204, 1232, 1260, 1290, 1320, 1386, 1419, 1485, 1505, 1512, 1540, 1548, 1584, 1680, 1720, 1806, 1848, 1890, 1892, 1935, 1980, 2064, 2079, 2160, 2310, 2322, 2365, 2376, 2408, 2520, 2580, 2640, 2709, 2772, 2838, 2897, 2970, 3010, 3024, 3080, 3096, 3311, 3440, 3465, 3612, 3696, 3780, 3784, 3870, 3960, 4158, 4257, 4515, 4620, 4644, 4730, 4752, 4816, 5040, 5160, 5418, 5544, 5676, 5794, 5805, 5940, 6020, 6160, 6192, 6622, 6930, 7095, 7224, 7560, 7568, 7740, 7920, 8127, 8316, 8514, 8691, 9030, 9240, 9288, 9460, 9933, 10320, 10395, 10836, 11088, 11352, 11588, 11610, 11880, 12040, 12771, 13244, 13545, 13860, 14190, 14448, 14485, 15120, 15480, 16254, 16555, 16632, 17028, 17382, 18060, 18480, 18576, 18920, 19866, 20279, 20790, 21285, 21672, 22704, 23176, 23220, 23760, 24080, 25542, 26073, 26488, 27090, 27720, 28380, 28970, 29799, 30960, 31867, 32508, 33110, 33264, 34056, 34764, 36120, 37840, 39732, 40558, 40635, 41580, 42570, 43344, 43455, 46352, 46440, 49665, 51084, 52146, 52976, 54180, 55440, 56760, 57940, 59598, 60837, 63734, 63855, 65016, 66220, 68112, 69528, 72240, 78219, 79464, 81116, 81270, 83160, 85140, 86910, 89397, 92880, 95601, 99330, 101395, 102168, 104292, 108360, 113520, 115880, 119196, 121674, 124571, 127468, 127710, 130032, 130365, 132440, 139056, 148995, 156438, 158928, 159335, 162232, 162540, 166320, 170280, 173820, 178794, 182511, 191202, 198660, 202790, 204336, 208584, 216720, 223069, 231760, 238392, 243348, 249142, 254936, 255420, 260730, 264880, 286803, 297990, 304185, 312876, 318670, 324464, 325080, 340560, 347640, 357588, 365022, 373713, 382404, 391095, 397320, 405580, 417168, 446138, 446985, 476784, 478005, 486696, 498284, 509872, 510840, 521460, 547533, 573606, 595980, 608370, 622855, 625752, 637340, 650160, 669207, 695280, 715176, 730044, 747426, 764808, 782190, 794640, 811160, 860409, 871997, 892276, 893970, 912555, 956010, 973392, 996568, 1021680, 1042920, 1095066, 1115345, 1121139, 1147212, 1191960, 1216740, 1245710, 1251504, 1274680, 1338414, 1370281, 1430352, 1434015, 1460088, 1494852, 1529616, 1564380, 1622320, 1720818, 1743994, 1784552, 1787940, 1825110, 1868565, 1912020, 1993136, 2007621, 2085840, 2190132, 2230690, 2242278, 2294424, 2383920, 2433480, 2491420, 2549360, 2615991, 2676828, 2737665, 2740562, 2868030, 2920176, 2989704, 3128760, 3346035, 3363417, 3441636, 3487988, 3569104, 3575880, 3650220, 3737130, 3824040, 4015242, 4110843, 4302045, 4359985, 4380264, 4461380, 4484556, 4588848, 4866960, 4982840, 5231982, 5353656, 5475330, 5481124, 5605695, 5736060, 5979408, 6022863, 6257520, 6692070, 6726834, 6851405, 6883272, 6975976, 7151760, 7300440, 7474260, 7648080, 7847973, 8030484, 8221686, 8604090, 8719970, 8760528, 8922760, 8969112, 9591967, 9965680, 10038105, 10463964, 10707312, 10950660, 10962248, 11211390, 11472120, 12045726, 12332529, 13079955, 13384140, 13453668, 13702810, 13766544, 13951952, 14600880, 14948520, 15695946, 16060968, 16443372, 16817085, 17208180, 17439940, 17845520, 17938224, 19183934, 20076210, 20554215, 20927928, 21901320, 21924496, 22422780, 22944240, 23543919, 24091452, 24665058, 26159910, 26768280, 26907336, 27405620, 28775901, 29897040, 30114315, 31391892, 32121936, 32886744, 33634170, 34416360, 34879880, 36997587, 38367868, 39239865, 40152420, 41108430, 41855856, 43802640, 44845560, 47087838, 47959835, 48182904, 49330116, 52319820, 53536560, 53814672, 54811240, 57551802, 60228630, 61662645, 62783784, 65773488, 67268340, 68832720, 69759760, 73995174, 76735736, 78479730, 80304840, 82216860, 86327703, 89691120, 94175676, 95919670, 96365808, 98660232, 104639640, 109622480, 115103604, 117719595, 120457260, 123325290, 125567568, 134536680, 143879505, 147990348, 153471472, 156959460, 160609680, 164433720, 172655406, 184987935, 188351352, 191839340, 197320464, 209279280, 230207208, 235439190, 240914520, 246650580, 258983109, 269073360, 287759010, 295980696, 313918920, 328867440, 345310812, 369975870, 376702704, 383678680, 431638515, 460414416, 470878380, 481829040, 493301160, 517966218, 575518020, 591961392, 627837840, 690621624, 739951740, 767357360, 863277030, 941756760, 986602320, 1035932436, 1151036040, 1294915545, 1381243248, 1479903480, 1726554060, 1883513520, 2071864872, 2302072080, 2589831090, 2959806960, 3453108120, 4143729744, 5179662180, 6906216240, 10359324360, 20718648720]

約数ペア:

[(1, 20718648720), (2, 10359324360), (3, 6906216240), (4, 5179662180), (5, 4143729744), (6, 3453108120), (7, 2959806960), (8, 2589831090), (9, 2302072080), (10, 2071864872), (11, 1883513520), (12, 1726554060), (14, 1479903480), (15, 1381243248), (16, 1294915545), (18, 1151036040), (20, 1035932436), (21, 986602320), (22, 941756760), (24, 863277030), (27, 767357360), (28, 739951740), (30, 690621624), (33, 627837840), (35, 591961392), (36, 575518020), (40, 517966218), (42, 493301160), (43, 481829040), (44, 470878380), (45, 460414416), (48, 431638515), (54, 383678680), (55, 376702704), (56, 369975870), (60, 345310812), (63, 328867440), (66, 313918920), (70, 295980696), (72, 287759010), (77, 269073360), (80, 258983109), (84, 246650580), (86, 240914520), (88, 235439190), (90, 230207208), (99, 209279280), (105, 197320464), (108, 191839340), (110, 188351352), (112, 184987935), (120, 172655406), (126, 164433720), (129, 160609680), (132, 156959460), (135, 153471472), (140, 147990348), (144, 143879505), (154, 134536680), (165, 125567568), (168, 123325290), (172, 120457260), (176, 117719595), (180, 115103604), (189, 109622480), (198, 104639640), (210, 98660232), (215, 96365808), (216, 95919670), (220, 94175676), (231, 89691120), (240, 86327703), (252, 82216860), (258, 80304840), (264, 78479730), (270, 76735736), (280, 73995174), (297, 69759760), (301, 68832720), (308, 67268340), (315, 65773488), (330, 62783784), (336, 61662645), (344, 60228630), (360, 57551802), (378, 54811240), (385, 53814672), (387, 53536560), (396, 52319820), (420, 49330116), (430, 48182904), (432, 47959835), (440, 47087838), (462, 44845560), (473, 43802640), (495, 41855856), (504, 41108430), (516, 40152420), (528, 39239865), (540, 38367868), (560, 36997587), (594, 34879880), (602, 34416360), (616, 33634170), (630, 32886744), (645, 32121936), (660, 31391892), (688, 30114315), (693, 29897040), (720, 28775901), (756, 27405620), (770, 26907336), (774, 26768280), (792, 26159910), (840, 24665058), (860, 24091452), (880, 23543919), (903, 22944240), (924, 22422780), (945, 21924496), (946, 21901320), (990, 20927928), (1008, 20554215), (1032, 20076210), (1080, 19183934), (1155, 17938224), (1161, 17845520), (1188, 17439940), (1204, 17208180), (1232, 16817085), (1260, 16443372), (1290, 16060968), (1320, 15695946), (1386, 14948520), (1419, 14600880), (1485, 13951952), (1505, 13766544), (1512, 13702810), (1540, 13453668), (1548, 13384140), (1584, 13079955), (1680, 12332529), (1720, 12045726), (1806, 11472120), (1848, 11211390), (1890, 10962248), (1892, 10950660), (1935, 10707312), (1980, 10463964), (2064, 10038105), (2079, 9965680), (2160, 9591967), (2310, 8969112), (2322, 8922760), (2365, 8760528), (2376, 8719970), (2408, 8604090), (2520, 8221686), (2580, 8030484), (2640, 7847973), (2709, 7648080), (2772, 7474260), (2838, 7300440), (2897, 7151760), (2970, 6975976), (3010, 6883272), (3024, 6851405), (3080, 6726834), (3096, 6692070), (3311, 6257520), (3440, 6022863), (3465, 5979408), (3612, 5736060), (3696, 5605695), (3780, 5481124), (3784, 5475330), (3870, 5353656), (3960, 5231982), (4158, 4982840), (4257, 4866960), (4515, 4588848), (4620, 4484556), (4644, 4461380), (4730, 4380264), (4752, 4359985), (4816, 4302045), (5040, 4110843), (5160, 4015242), (5418, 3824040), (5544, 3737130), (5676, 3650220), (5794, 3575880), (5805, 3569104), (5940, 3487988), (6020, 3441636), (6160, 3363417), (6192, 3346035), (6622, 3128760), (6930, 2989704), (7095, 2920176), (7224, 2868030), (7560, 2740562), (7568, 2737665), (7740, 2676828), (7920, 2615991), (8127, 2549360), (8316, 2491420), (8514, 2433480), (8691, 2383920), (9030, 2294424), (9240, 2242278), (9288, 2230690), (9460, 2190132), (9933, 2085840), (10320, 2007621), (10395, 1993136), (10836, 1912020), (11088, 1868565), (11352, 1825110), (11588, 1787940), (11610, 1784552), (11880, 1743994), (12040, 1720818), (12771, 1622320), (13244, 1564380), (13545, 1529616), (13860, 1494852), (14190, 1460088), (14448, 1434015), (14485, 1430352), (15120, 1370281), (15480, 1338414), (16254, 1274680), (16555, 1251504), (16632, 1245710), (17028, 1216740), (17382, 1191960), (18060, 1147212), (18480, 1121139), (18576, 1115345), (18920, 1095066), (19866, 1042920), (20279, 1021680), (20790, 996568), (21285, 973392), (21672, 956010), (22704, 912555), (23176, 893970), (23220, 892276), (23760, 871997), (24080, 860409), (25542, 811160), (26073, 794640), (26488, 782190), (27090, 764808), (27720, 747426), (28380, 730044), (28970, 715176), (29799, 695280), (30960, 669207), (31867, 650160), (32508, 637340), (33110, 625752), (33264, 622855), (34056, 608370), (34764, 595980), (36120, 573606), (37840, 547533), (39732, 521460), (40558, 510840), (40635, 509872), (41580, 498284), (42570, 486696), (43344, 478005), (43455, 476784), (46352, 446985), (46440, 446138), (49665, 417168), (51084, 405580), (52146, 397320), (52976, 391095), (54180, 382404), (55440, 373713), (56760, 365022), (57940, 357588), (59598, 347640), (60837, 340560), (63734, 325080), (63855, 324464), (65016, 318670), (66220, 312876), (68112, 304185), (69528, 297990), (72240, 286803), (78219, 264880), (79464, 260730), (81116, 255420), (81270, 254936), (83160, 249142), (85140, 243348), (86910, 238392), (89397, 231760), (92880, 223069), (95601, 216720), (99330, 208584), (101395, 204336), (102168, 202790), (104292, 198660), (108360, 191202), (113520, 182511), (115880, 178794), (119196, 173820), (121674, 170280), (124571, 166320), (127468, 162540), (127710, 162232), (130032, 159335), (130365, 158928), (132440, 156438), (139056, 148995)]