261461760

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:239

約数の個数: 288

約数和(自身を含む): 974840832

約数和(自身を除く): 713379072

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, 64, 70, 71, 80, 84, 96, 105, 112, 120, 128, 137, 140, 142, 160, 168, 192, 210, 213, 224, 240, 256, 274, 280, 284, 320, 336, 355, 384, 411, 420, 426, 448, 480, 497, 548, 560, 568, 640, 672, 685, 710, 768, 822, 840, 852, 896, 959, 960, 994, 1065, 1096, 1120, 1136, 1280, 1344, 1370, 1420, 1491, 1644, 1680, 1704, 1792, 1918, 1920, 1988, 2055, 2130, 2192, 2240, 2272, 2485, 2688, 2740, 2840, 2877, 2982, 3288, 3360, 3408, 3836, 3840, 3976, 4110, 4260, 4384, 4480, 4544, 4795, 4970, 5376, 5480, 5680, 5754, 5964, 6576, 6720, 6816, 7455, 7672, 7952, 8220, 8520, 8768, 8960, 9088, 9590, 9727, 9940, 10960, 11360, 11508, 11928, 13152, 13440, 13632, 14385, 14910, 15344, 15904, 16440, 17040, 17536, 18176, 19180, 19454, 19880, 21920, 22720, 23016, 23856, 26304, 26880, 27264, 28770, 29181, 29820, 30688, 31808, 32880, 34080, 35072, 38360, 38908, 39760, 43840, 45440, 46032, 47712, 48635, 52608, 54528, 57540, 58362, 59640, 61376, 63616, 65760, 68089, 68160, 76720, 77816, 79520, 87680, 90880, 92064, 95424, 97270, 105216, 115080, 116724, 119280, 122752, 127232, 131520, 136178, 136320, 145905, 153440, 155632, 159040, 175360, 184128, 190848, 194540, 204267, 230160, 233448, 238560, 245504, 263040, 272356, 272640, 291810, 306880, 311264, 318080, 340445, 368256, 381696, 389080, 408534, 460320, 466896, 477120, 526080, 544712, 583620, 613760, 622528, 636160, 680890, 736512, 778160, 817068, 920640, 933792, 954240, 1021335, 1089424, 1167240, 1227520, 1245056, 1361780, 1556320, 1634136, 1841280, 1867584, 1908480, 2042670, 2178848, 2334480, 2490112, 2723560, 3112640, 3268272, 3682560, 3735168, 4085340, 4357696, 4668960, 5447120, 6225280, 6536544, 7470336, 8170680, 8715392, 9337920, 10894240, 12450560, 13073088, 16341360, 17430784, 18675840, 21788480, 26146176, 32682720, 37351680, 43576960, 52292352, 65365440, 87153920, 130730880, 261461760]

約数ペア:

[(1, 261461760), (2, 130730880), (3, 87153920), (4, 65365440), (5, 52292352), (6, 43576960), (7, 37351680), (8, 32682720), (10, 26146176), (12, 21788480), (14, 18675840), (15, 17430784), (16, 16341360), (20, 13073088), (21, 12450560), (24, 10894240), (28, 9337920), (30, 8715392), (32, 8170680), (35, 7470336), (40, 6536544), (42, 6225280), (48, 5447120), (56, 4668960), (60, 4357696), (64, 4085340), (70, 3735168), (71, 3682560), (80, 3268272), (84, 3112640), (96, 2723560), (105, 2490112), (112, 2334480), (120, 2178848), (128, 2042670), (137, 1908480), (140, 1867584), (142, 1841280), (160, 1634136), (168, 1556320), (192, 1361780), (210, 1245056), (213, 1227520), (224, 1167240), (240, 1089424), (256, 1021335), (274, 954240), (280, 933792), (284, 920640), (320, 817068), (336, 778160), (355, 736512), (384, 680890), (411, 636160), (420, 622528), (426, 613760), (448, 583620), (480, 544712), (497, 526080), (548, 477120), (560, 466896), (568, 460320), (640, 408534), (672, 389080), (685, 381696), (710, 368256), (768, 340445), (822, 318080), (840, 311264), (852, 306880), (896, 291810), (959, 272640), (960, 272356), (994, 263040), (1065, 245504), (1096, 238560), (1120, 233448), (1136, 230160), (1280, 204267), (1344, 194540), (1370, 190848), (1420, 184128), (1491, 175360), (1644, 159040), (1680, 155632), (1704, 153440), (1792, 145905), (1918, 136320), (1920, 136178), (1988, 131520), (2055, 127232), (2130, 122752), (2192, 119280), (2240, 116724), (2272, 115080), (2485, 105216), (2688, 97270), (2740, 95424), (2840, 92064), (2877, 90880), (2982, 87680), (3288, 79520), (3360, 77816), (3408, 76720), (3836, 68160), (3840, 68089), (3976, 65760), (4110, 63616), (4260, 61376), (4384, 59640), (4480, 58362), (4544, 57540), (4795, 54528), (4970, 52608), (5376, 48635), (5480, 47712), (5680, 46032), (5754, 45440), (5964, 43840), (6576, 39760), (6720, 38908), (6816, 38360), (7455, 35072), (7672, 34080), (7952, 32880), (8220, 31808), (8520, 30688), (8768, 29820), (8960, 29181), (9088, 28770), (9590, 27264), (9727, 26880), (9940, 26304), (10960, 23856), (11360, 23016), (11508, 22720), (11928, 21920), (13152, 19880), (13440, 19454), (13632, 19180), (14385, 18176), (14910, 17536), (15344, 17040), (15904, 16440)]