646457760

素因数分解:

$2^5\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1279}}^1$

素因数の和:1322

約数の個数: 288

約数和(自身を含む): 2465648640

約数和(自身を除く): 1819190880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 81, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 162, 180, 195, 208, 216, 234, 240, 243, 260, 270, 288, 312, 324, 351, 360, 390, 405, 416, 432, 468, 480, 486, 520, 540, 585, 624, 648, 702, 720, 780, 810, 864, 936, 972, 1040, 1053, 1080, 1170, 1215, 1248, 1279, 1296, 1404, 1440, 1560, 1620, 1755, 1872, 1944, 2080, 2106, 2160, 2340, 2430, 2558, 2592, 2808, 3120, 3159, 3240, 3510, 3744, 3837, 3888, 4212, 4320, 4680, 4860, 5116, 5265, 5616, 6240, 6318, 6395, 6480, 7020, 7674, 7776, 8424, 9360, 9720, 10232, 10530, 11232, 11511, 12636, 12790, 12960, 14040, 15348, 15795, 16627, 16848, 18720, 19185, 19440, 20464, 21060, 23022, 25272, 25580, 28080, 30696, 31590, 33254, 33696, 34533, 38370, 38880, 40928, 42120, 46044, 49881, 50544, 51160, 56160, 57555, 61392, 63180, 66508, 69066, 76740, 83135, 84240, 92088, 99762, 101088, 102320, 103599, 115110, 122784, 126360, 133016, 138132, 149643, 153480, 166270, 168480, 172665, 184176, 199524, 204640, 207198, 230220, 249405, 252720, 266032, 276264, 299286, 306960, 310797, 332540, 345330, 368352, 399048, 414396, 448929, 460440, 498810, 505440, 517995, 532064, 552528, 598572, 613920, 621594, 665080, 690660, 748215, 798096, 828792, 897858, 920880, 997620, 1035990, 1105056, 1197144, 1243188, 1330160, 1346787, 1381320, 1496430, 1553985, 1596192, 1657584, 1795716, 1841760, 1995240, 2071980, 2244645, 2394288, 2486376, 2660320, 2693574, 2762640, 2992860, 3107970, 3315168, 3591432, 3990480, 4040361, 4143960, 4489290, 4788576, 4972752, 5387148, 5525280, 5985720, 6215940, 6733935, 7182864, 7980960, 8080722, 8287920, 8978580, 9945504, 10774296, 11971440, 12431880, 13467870, 14365728, 16161444, 16575840, 17957160, 20201805, 21548592, 23942880, 24863760, 26935740, 32322888, 35914320, 40403610, 43097184, 49727520, 53871480, 64645776, 71828640, 80807220, 107742960, 129291552, 161614440, 215485920, 323228880, 646457760]

約数ペア:

[(1, 646457760), (2, 323228880), (3, 215485920), (4, 161614440), (5, 129291552), (6, 107742960), (8, 80807220), (9, 71828640), (10, 64645776), (12, 53871480), (13, 49727520), (15, 43097184), (16, 40403610), (18, 35914320), (20, 32322888), (24, 26935740), (26, 24863760), (27, 23942880), (30, 21548592), (32, 20201805), (36, 17957160), (39, 16575840), (40, 16161444), (45, 14365728), (48, 13467870), (52, 12431880), (54, 11971440), (60, 10774296), (65, 9945504), (72, 8978580), (78, 8287920), (80, 8080722), (81, 7980960), (90, 7182864), (96, 6733935), (104, 6215940), (108, 5985720), (117, 5525280), (120, 5387148), (130, 4972752), (135, 4788576), (144, 4489290), (156, 4143960), (160, 4040361), (162, 3990480), (180, 3591432), (195, 3315168), (208, 3107970), (216, 2992860), (234, 2762640), (240, 2693574), (243, 2660320), (260, 2486376), (270, 2394288), (288, 2244645), (312, 2071980), (324, 1995240), (351, 1841760), (360, 1795716), (390, 1657584), (405, 1596192), (416, 1553985), (432, 1496430), (468, 1381320), (480, 1346787), (486, 1330160), (520, 1243188), (540, 1197144), (585, 1105056), (624, 1035990), (648, 997620), (702, 920880), (720, 897858), (780, 828792), (810, 798096), (864, 748215), (936, 690660), (972, 665080), (1040, 621594), (1053, 613920), (1080, 598572), (1170, 552528), (1215, 532064), (1248, 517995), (1279, 505440), (1296, 498810), (1404, 460440), (1440, 448929), (1560, 414396), (1620, 399048), (1755, 368352), (1872, 345330), (1944, 332540), (2080, 310797), (2106, 306960), (2160, 299286), (2340, 276264), (2430, 266032), (2558, 252720), (2592, 249405), (2808, 230220), (3120, 207198), (3159, 204640), (3240, 199524), (3510, 184176), (3744, 172665), (3837, 168480), (3888, 166270), (4212, 153480), (4320, 149643), (4680, 138132), (4860, 133016), (5116, 126360), (5265, 122784), (5616, 115110), (6240, 103599), (6318, 102320), (6395, 101088), (6480, 99762), (7020, 92088), (7674, 84240), (7776, 83135), (8424, 76740), (9360, 69066), (9720, 66508), (10232, 63180), (10530, 61392), (11232, 57555), (11511, 56160), (12636, 51160), (12790, 50544), (12960, 49881), (14040, 46044), (15348, 42120), (15795, 40928), (16627, 38880), (16848, 38370), (18720, 34533), (19185, 33696), (19440, 33254), (20464, 31590), (21060, 30696), (23022, 28080), (25272, 25580)]