21249409920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{157}}^2\times {\mathrm{449}}^1$

素因数の和:785

約数の個数: 192

約数和(自身を含む): 68318478000

約数和(自身を除く): 47069068080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 157, 160, 192, 240, 314, 320, 384, 449, 471, 480, 628, 640, 785, 898, 942, 960, 1256, 1347, 1570, 1796, 1884, 1920, 2245, 2355, 2512, 2694, 3140, 3592, 3768, 4490, 4710, 5024, 5388, 6280, 6735, 7184, 7536, 8980, 9420, 10048, 10776, 12560, 13470, 14368, 15072, 17960, 18840, 20096, 21552, 24649, 25120, 26940, 28736, 30144, 35920, 37680, 43104, 49298, 50240, 53880, 57472, 60288, 70493, 71840, 73947, 75360, 86208, 98596, 100480, 107760, 123245, 140986, 143680, 147894, 150720, 172416, 197192, 211479, 215520, 246490, 281972, 287360, 295788, 301440, 352465, 369735, 394384, 422958, 431040, 492980, 563944, 591576, 704930, 739470, 788768, 845916, 862080, 985960, 1057395, 1127888, 1183152, 1409860, 1478940, 1577536, 1691832, 1971920, 2114790, 2255776, 2366304, 2819720, 2957880, 3155072, 3383664, 3943840, 4229580, 4511552, 4732608, 5639440, 5915760, 6767328, 7887680, 8459160, 9023104, 9465216, 11067401, 11278880, 11831520, 13534656, 15775360, 16918320, 22134802, 22557760, 23663040, 27069312, 33202203, 33836640, 44269604, 45115520, 47326080, 55337005, 66404406, 67673280, 88539208, 110674010, 132808812, 135346560, 166011015, 177078416, 221348020, 265617624, 332022030, 354156832, 442696040, 531235248, 664044060, 708313664, 885392080, 1062470496, 1328088120, 1416627328, 1770784160, 2124940992, 2656176240, 3541568320, 4249881984, 5312352480, 7083136640, 10624704960, 21249409920]

約数ペア:

[(1, 21249409920), (2, 10624704960), (3, 7083136640), (4, 5312352480), (5, 4249881984), (6, 3541568320), (8, 2656176240), (10, 2124940992), (12, 1770784160), (15, 1416627328), (16, 1328088120), (20, 1062470496), (24, 885392080), (30, 708313664), (32, 664044060), (40, 531235248), (48, 442696040), (60, 354156832), (64, 332022030), (80, 265617624), (96, 221348020), (120, 177078416), (128, 166011015), (157, 135346560), (160, 132808812), (192, 110674010), (240, 88539208), (314, 67673280), (320, 66404406), (384, 55337005), (449, 47326080), (471, 45115520), (480, 44269604), (628, 33836640), (640, 33202203), (785, 27069312), (898, 23663040), (942, 22557760), (960, 22134802), (1256, 16918320), (1347, 15775360), (1570, 13534656), (1796, 11831520), (1884, 11278880), (1920, 11067401), (2245, 9465216), (2355, 9023104), (2512, 8459160), (2694, 7887680), (3140, 6767328), (3592, 5915760), (3768, 5639440), (4490, 4732608), (4710, 4511552), (5024, 4229580), (5388, 3943840), (6280, 3383664), (6735, 3155072), (7184, 2957880), (7536, 2819720), (8980, 2366304), (9420, 2255776), (10048, 2114790), (10776, 1971920), (12560, 1691832), (13470, 1577536), (14368, 1478940), (15072, 1409860), (17960, 1183152), (18840, 1127888), (20096, 1057395), (21552, 985960), (24649, 862080), (25120, 845916), (26940, 788768), (28736, 739470), (30144, 704930), (35920, 591576), (37680, 563944), (43104, 492980), (49298, 431040), (50240, 422958), (53880, 394384), (57472, 369735), (60288, 352465), (70493, 301440), (71840, 295788), (73947, 287360), (75360, 281972), (86208, 246490), (98596, 215520), (100480, 211479), (107760, 197192), (123245, 172416), (140986, 150720), (143680, 147894)]