81486440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:124

約数の個数: 192

約数和(自身を含む): 238723200

約数和(自身を除く): 157236760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 19, 20, 28, 34, 35, 38, 40, 53, 56, 68, 70, 76, 85, 95, 106, 119, 133, 136, 140, 152, 170, 190, 212, 238, 265, 266, 280, 289, 323, 340, 371, 380, 424, 476, 530, 532, 578, 595, 646, 665, 680, 742, 760, 901, 952, 1007, 1060, 1064, 1156, 1190, 1292, 1330, 1445, 1484, 1615, 1802, 1855, 2014, 2023, 2120, 2261, 2312, 2380, 2584, 2660, 2890, 2968, 3230, 3604, 3710, 4028, 4046, 4505, 4522, 4760, 5035, 5320, 5491, 5780, 6307, 6460, 7049, 7208, 7420, 8056, 8092, 9010, 9044, 10070, 10115, 10982, 11305, 11560, 12614, 12920, 14098, 14840, 15317, 16184, 17119, 18020, 18088, 20140, 20230, 21964, 22610, 25228, 27455, 28196, 30634, 31535, 34238, 35245, 36040, 38437, 40280, 40460, 43928, 45220, 50456, 54910, 56392, 61268, 63070, 68476, 70490, 76585, 76874, 80920, 85595, 90440, 107219, 109820, 119833, 122536, 126140, 136952, 140980, 153170, 153748, 171190, 192185, 214438, 219640, 239666, 252280, 281960, 291023, 306340, 307496, 342380, 384370, 428876, 479332, 536095, 582046, 599165, 612680, 684760, 768740, 857752, 958664, 1072190, 1164092, 1198330, 1455115, 1537480, 2037161, 2144380, 2328184, 2396660, 2910230, 4074322, 4288760, 4793320, 5820460, 8148644, 10185805, 11640920, 16297288, 20371610, 40743220, 81486440]

約数ペア:

[(1, 81486440), (2, 40743220), (4, 20371610), (5, 16297288), (7, 11640920), (8, 10185805), (10, 8148644), (14, 5820460), (17, 4793320), (19, 4288760), (20, 4074322), (28, 2910230), (34, 2396660), (35, 2328184), (38, 2144380), (40, 2037161), (53, 1537480), (56, 1455115), (68, 1198330), (70, 1164092), (76, 1072190), (85, 958664), (95, 857752), (106, 768740), (119, 684760), (133, 612680), (136, 599165), (140, 582046), (152, 536095), (170, 479332), (190, 428876), (212, 384370), (238, 342380), (265, 307496), (266, 306340), (280, 291023), (289, 281960), (323, 252280), (340, 239666), (371, 219640), (380, 214438), (424, 192185), (476, 171190), (530, 153748), (532, 153170), (578, 140980), (595, 136952), (646, 126140), (665, 122536), (680, 119833), (742, 109820), (760, 107219), (901, 90440), (952, 85595), (1007, 80920), (1060, 76874), (1064, 76585), (1156, 70490), (1190, 68476), (1292, 63070), (1330, 61268), (1445, 56392), (1484, 54910), (1615, 50456), (1802, 45220), (1855, 43928), (2014, 40460), (2023, 40280), (2120, 38437), (2261, 36040), (2312, 35245), (2380, 34238), (2584, 31535), (2660, 30634), (2890, 28196), (2968, 27455), (3230, 25228), (3604, 22610), (3710, 21964), (4028, 20230), (4046, 20140), (4505, 18088), (4522, 18020), (4760, 17119), (5035, 16184), (5320, 15317), (5491, 14840), (5780, 14098), (6307, 12920), (6460, 12614), (7049, 11560), (7208, 11305), (7420, 10982), (8056, 10115), (8092, 10070), (9010, 9044)]