81384240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{251}}^1$

素因数の和:467

約数の個数: 160

約数和(自身を含む): 290981376

約数和(自身を除く): 209597136

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 193, 210, 240, 251, 280, 336, 386, 420, 502, 560, 579, 753, 772, 840, 965, 1004, 1158, 1255, 1351, 1506, 1544, 1680, 1757, 1930, 2008, 2316, 2510, 2702, 2895, 3012, 3088, 3514, 3765, 3860, 4016, 4053, 4632, 5020, 5271, 5404, 5790, 6024, 6755, 7028, 7530, 7720, 8106, 8785, 9264, 10040, 10542, 10808, 11580, 12048, 13510, 14056, 15060, 15440, 16212, 17570, 20080, 20265, 21084, 21616, 23160, 26355, 27020, 28112, 30120, 32424, 35140, 40530, 42168, 46320, 48443, 52710, 54040, 60240, 64848, 70280, 81060, 84336, 96886, 105420, 108080, 140560, 145329, 162120, 193772, 210840, 242215, 290658, 324240, 339101, 387544, 421680, 484430, 581316, 678202, 726645, 775088, 968860, 1017303, 1162632, 1356404, 1453290, 1695505, 1937720, 2034606, 2325264, 2712808, 2906580, 3391010, 3875440, 4069212, 5086515, 5425616, 5813160, 6782020, 8138424, 10173030, 11626320, 13564040, 16276848, 20346060, 27128080, 40692120, 81384240]

約数ペア:

[(1, 81384240), (2, 40692120), (3, 27128080), (4, 20346060), (5, 16276848), (6, 13564040), (7, 11626320), (8, 10173030), (10, 8138424), (12, 6782020), (14, 5813160), (15, 5425616), (16, 5086515), (20, 4069212), (21, 3875440), (24, 3391010), (28, 2906580), (30, 2712808), (35, 2325264), (40, 2034606), (42, 1937720), (48, 1695505), (56, 1453290), (60, 1356404), (70, 1162632), (80, 1017303), (84, 968860), (105, 775088), (112, 726645), (120, 678202), (140, 581316), (168, 484430), (193, 421680), (210, 387544), (240, 339101), (251, 324240), (280, 290658), (336, 242215), (386, 210840), (420, 193772), (502, 162120), (560, 145329), (579, 140560), (753, 108080), (772, 105420), (840, 96886), (965, 84336), (1004, 81060), (1158, 70280), (1255, 64848), (1351, 60240), (1506, 54040), (1544, 52710), (1680, 48443), (1757, 46320), (1930, 42168), (2008, 40530), (2316, 35140), (2510, 32424), (2702, 30120), (2895, 28112), (3012, 27020), (3088, 26355), (3514, 23160), (3765, 21616), (3860, 21084), (4016, 20265), (4053, 20080), (4632, 17570), (5020, 16212), (5271, 15440), (5404, 15060), (5790, 14056), (6024, 13510), (6755, 12048), (7028, 11580), (7530, 10808), (7720, 10542), (8106, 10040), (8785, 9264)]