261162720

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1993}}^1$

素因数の和:2034

約数の個数: 288

約数和(自身を含む): 1097433792

約数和(自身を除く): 836271072

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 32, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 96, 104, 105, 112, 117, 120, 126, 130, 140, 144, 156, 160, 168, 180, 182, 195, 208, 210, 224, 234, 240, 252, 260, 273, 280, 288, 312, 315, 336, 360, 364, 390, 416, 420, 455, 468, 480, 504, 520, 546, 560, 585, 624, 630, 672, 720, 728, 780, 819, 840, 910, 936, 1008, 1040, 1092, 1120, 1170, 1248, 1260, 1365, 1440, 1456, 1560, 1638, 1680, 1820, 1872, 1993, 2016, 2080, 2184, 2340, 2520, 2730, 2912, 3120, 3276, 3360, 3640, 3744, 3986, 4095, 4368, 4680, 5040, 5460, 5979, 6240, 6552, 7280, 7972, 8190, 8736, 9360, 9965, 10080, 10920, 11958, 13104, 13951, 14560, 15944, 16380, 17937, 18720, 19930, 21840, 23916, 25909, 26208, 27902, 29895, 31888, 32760, 35874, 39860, 41853, 43680, 47832, 51818, 55804, 59790, 63776, 65520, 69755, 71748, 77727, 79720, 83706, 89685, 95664, 103636, 111608, 119580, 125559, 129545, 131040, 139510, 143496, 155454, 159440, 167412, 179370, 181363, 191328, 207272, 209265, 223216, 233181, 239160, 251118, 259090, 279020, 286992, 310908, 318880, 334824, 358740, 362726, 388635, 414544, 418530, 446432, 466362, 478320, 502236, 518180, 544089, 558040, 573984, 621816, 627795, 669648, 717480, 725452, 777270, 829088, 837060, 906815, 932724, 956640, 1004472, 1036360, 1088178, 1116080, 1165905, 1243632, 1255590, 1339296, 1434960, 1450904, 1554540, 1632267, 1674120, 1813630, 1865448, 2008944, 2072720, 2176356, 2232160, 2331810, 2487264, 2511180, 2720445, 2869920, 2901808, 3109080, 3264534, 3348240, 3627260, 3730896, 4017888, 4145440, 4352712, 4663620, 5022360, 5440890, 5803616, 6218160, 6529068, 6696480, 7254520, 7461792, 8161335, 8705424, 9327240, 10044720, 10881780, 12436320, 13058136, 14509040, 16322670, 17410848, 18654480, 20089440, 21763560, 26116272, 29018080, 32645340, 37308960, 43527120, 52232544, 65290680, 87054240, 130581360, 261162720]

約数ペア:

[(1, 261162720), (2, 130581360), (3, 87054240), (4, 65290680), (5, 52232544), (6, 43527120), (7, 37308960), (8, 32645340), (9, 29018080), (10, 26116272), (12, 21763560), (13, 20089440), (14, 18654480), (15, 17410848), (16, 16322670), (18, 14509040), (20, 13058136), (21, 12436320), (24, 10881780), (26, 10044720), (28, 9327240), (30, 8705424), (32, 8161335), (35, 7461792), (36, 7254520), (39, 6696480), (40, 6529068), (42, 6218160), (45, 5803616), (48, 5440890), (52, 5022360), (56, 4663620), (60, 4352712), (63, 4145440), (65, 4017888), (70, 3730896), (72, 3627260), (78, 3348240), (80, 3264534), (84, 3109080), (90, 2901808), (91, 2869920), (96, 2720445), (104, 2511180), (105, 2487264), (112, 2331810), (117, 2232160), (120, 2176356), (126, 2072720), (130, 2008944), (140, 1865448), (144, 1813630), (156, 1674120), (160, 1632267), (168, 1554540), (180, 1450904), (182, 1434960), (195, 1339296), (208, 1255590), (210, 1243632), (224, 1165905), (234, 1116080), (240, 1088178), (252, 1036360), (260, 1004472), (273, 956640), (280, 932724), (288, 906815), (312, 837060), (315, 829088), (336, 777270), (360, 725452), (364, 717480), (390, 669648), (416, 627795), (420, 621816), (455, 573984), (468, 558040), (480, 544089), (504, 518180), (520, 502236), (546, 478320), (560, 466362), (585, 446432), (624, 418530), (630, 414544), (672, 388635), (720, 362726), (728, 358740), (780, 334824), (819, 318880), (840, 310908), (910, 286992), (936, 279020), (1008, 259090), (1040, 251118), (1092, 239160), (1120, 233181), (1170, 223216), (1248, 209265), (1260, 207272), (1365, 191328), (1440, 181363), (1456, 179370), (1560, 167412), (1638, 159440), (1680, 155454), (1820, 143496), (1872, 139510), (1993, 131040), (2016, 129545), (2080, 125559), (2184, 119580), (2340, 111608), (2520, 103636), (2730, 95664), (2912, 89685), (3120, 83706), (3276, 79720), (3360, 77727), (3640, 71748), (3744, 69755), (3986, 65520), (4095, 63776), (4368, 59790), (4680, 55804), (5040, 51818), (5460, 47832), (5979, 43680), (6240, 41853), (6552, 39860), (7280, 35874), (7972, 32760), (8190, 31888), (8736, 29895), (9360, 27902), (9965, 26208), (10080, 25909), (10920, 23916), (11958, 21840), (13104, 19930), (13951, 18720), (14560, 17937), (15944, 16380)]