81805920

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:373

約数の個数: 192

約数和(自身を含む): 298722816

約数和(自身を除く): 216916896

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 97, 105, 112, 120, 140, 160, 168, 194, 210, 224, 240, 251, 280, 291, 336, 388, 420, 480, 485, 502, 560, 582, 672, 679, 753, 776, 840, 970, 1004, 1120, 1164, 1255, 1358, 1455, 1506, 1552, 1680, 1757, 1940, 2008, 2037, 2328, 2510, 2716, 2910, 3012, 3104, 3360, 3395, 3514, 3765, 3880, 4016, 4074, 4656, 5020, 5271, 5432, 5820, 6024, 6790, 7028, 7530, 7760, 8032, 8148, 8785, 9312, 10040, 10185, 10542, 10864, 11640, 12048, 13580, 14056, 15060, 15520, 16296, 17570, 20080, 20370, 21084, 21728, 23280, 24096, 24347, 26355, 27160, 28112, 30120, 32592, 35140, 40160, 40740, 42168, 46560, 48694, 52710, 54320, 56224, 60240, 65184, 70280, 73041, 81480, 84336, 97388, 105420, 108640, 120480, 121735, 140560, 146082, 162960, 168672, 170429, 194776, 210840, 243470, 281120, 292164, 325920, 340858, 365205, 389552, 421680, 486940, 511287, 584328, 681716, 730410, 779104, 843360, 852145, 973880, 1022574, 1168656, 1363432, 1460820, 1704290, 1947760, 2045148, 2337312, 2556435, 2726864, 2921640, 3408580, 3895520, 4090296, 5112870, 5453728, 5843280, 6817160, 8180592, 10225740, 11686560, 13634320, 16361184, 20451480, 27268640, 40902960, 81805920]

約数ペア:

[(1, 81805920), (2, 40902960), (3, 27268640), (4, 20451480), (5, 16361184), (6, 13634320), (7, 11686560), (8, 10225740), (10, 8180592), (12, 6817160), (14, 5843280), (15, 5453728), (16, 5112870), (20, 4090296), (21, 3895520), (24, 3408580), (28, 2921640), (30, 2726864), (32, 2556435), (35, 2337312), (40, 2045148), (42, 1947760), (48, 1704290), (56, 1460820), (60, 1363432), (70, 1168656), (80, 1022574), (84, 973880), (96, 852145), (97, 843360), (105, 779104), (112, 730410), (120, 681716), (140, 584328), (160, 511287), (168, 486940), (194, 421680), (210, 389552), (224, 365205), (240, 340858), (251, 325920), (280, 292164), (291, 281120), (336, 243470), (388, 210840), (420, 194776), (480, 170429), (485, 168672), (502, 162960), (560, 146082), (582, 140560), (672, 121735), (679, 120480), (753, 108640), (776, 105420), (840, 97388), (970, 84336), (1004, 81480), (1120, 73041), (1164, 70280), (1255, 65184), (1358, 60240), (1455, 56224), (1506, 54320), (1552, 52710), (1680, 48694), (1757, 46560), (1940, 42168), (2008, 40740), (2037, 40160), (2328, 35140), (2510, 32592), (2716, 30120), (2910, 28112), (3012, 27160), (3104, 26355), (3360, 24347), (3395, 24096), (3514, 23280), (3765, 21728), (3880, 21084), (4016, 20370), (4074, 20080), (4656, 17570), (5020, 16296), (5271, 15520), (5432, 15060), (5820, 14056), (6024, 13580), (6790, 12048), (7028, 11640), (7530, 10864), (7760, 10542), (8032, 10185), (8148, 10040), (8785, 9312)]