20421271872

素因数分解:

$2^6\times 3^2\times {\mathrm{97}}^1\times {\mathrm{317}}^1\times {\mathrm{1153}}^1$

素因数の和:1585

約数の個数: 168

約数和(自身を含む): 59375335656

約数和(自身を除く): 38954063784

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 97, 144, 192, 194, 288, 291, 317, 388, 576, 582, 634, 776, 873, 951, 1153, 1164, 1268, 1552, 1746, 1902, 2306, 2328, 2536, 2853, 3104, 3459, 3492, 3804, 4612, 4656, 5072, 5706, 6208, 6918, 6984, 7608, 9224, 9312, 10144, 10377, 11412, 13836, 13968, 15216, 18448, 18624, 20288, 20754, 22824, 27672, 27936, 30432, 30749, 36896, 41508, 45648, 55344, 55872, 60864, 61498, 73792, 83016, 91296, 92247, 110688, 111841, 122996, 166032, 182592, 184494, 221376, 223682, 245992, 276741, 332064, 335523, 365501, 368988, 447364, 491984, 553482, 664128, 671046, 731002, 737976, 894728, 983968, 1006569, 1096503, 1106964, 1342092, 1462004, 1475952, 1789456, 1967936, 2013138, 2193006, 2213928, 2684184, 2924008, 2951904, 3289509, 3578912, 4026276, 4386012, 4427856, 5368368, 5848016, 5903808, 6579018, 7157824, 8052552, 8772024, 8855712, 10736736, 11696032, 13158036, 16105104, 17544048, 17711424, 21473472, 23392064, 26316072, 32210208, 35088096, 35453597, 52632144, 64420416, 70176192, 70907194, 105264288, 106360791, 141814388, 210528576, 212721582, 283628776, 319082373, 425443164, 567257552, 638164746, 850886328, 1134515104, 1276329492, 1701772656, 2269030208, 2552658984, 3403545312, 5105317968, 6807090624, 10210635936, 20421271872]

約数ペア:

[(1, 20421271872), (2, 10210635936), (3, 6807090624), (4, 5105317968), (6, 3403545312), (8, 2552658984), (9, 2269030208), (12, 1701772656), (16, 1276329492), (18, 1134515104), (24, 850886328), (32, 638164746), (36, 567257552), (48, 425443164), (64, 319082373), (72, 283628776), (96, 212721582), (97, 210528576), (144, 141814388), (192, 106360791), (194, 105264288), (288, 70907194), (291, 70176192), (317, 64420416), (388, 52632144), (576, 35453597), (582, 35088096), (634, 32210208), (776, 26316072), (873, 23392064), (951, 21473472), (1153, 17711424), (1164, 17544048), (1268, 16105104), (1552, 13158036), (1746, 11696032), (1902, 10736736), (2306, 8855712), (2328, 8772024), (2536, 8052552), (2853, 7157824), (3104, 6579018), (3459, 5903808), (3492, 5848016), (3804, 5368368), (4612, 4427856), (4656, 4386012), (5072, 4026276), (5706, 3578912), (6208, 3289509), (6918, 2951904), (6984, 2924008), (7608, 2684184), (9224, 2213928), (9312, 2193006), (10144, 2013138), (10377, 1967936), (11412, 1789456), (13836, 1475952), (13968, 1462004), (15216, 1342092), (18448, 1106964), (18624, 1096503), (20288, 1006569), (20754, 983968), (22824, 894728), (27672, 737976), (27936, 731002), (30432, 671046), (30749, 664128), (36896, 553482), (41508, 491984), (45648, 447364), (55344, 368988), (55872, 365501), (60864, 335523), (61498, 332064), (73792, 276741), (83016, 245992), (91296, 223682), (92247, 221376), (110688, 184494), (111841, 182592), (122996, 166032)]