21473280

素因数分解:

$2^{11}\times 3^2\times 5^1\times {\mathrm{233}}^1$

素因数の和:266

約数の個数: 144

約数和(自身を含む): 74741940

約数和(自身を除く): 53268660

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 233, 240, 256, 288, 320, 360, 384, 466, 480, 512, 576, 640, 699, 720, 768, 932, 960, 1024, 1152, 1165, 1280, 1398, 1440, 1536, 1864, 1920, 2048, 2097, 2304, 2330, 2560, 2796, 2880, 3072, 3495, 3728, 3840, 4194, 4608, 4660, 5120, 5592, 5760, 6144, 6990, 7456, 7680, 8388, 9216, 9320, 10240, 10485, 11184, 11520, 13980, 14912, 15360, 16776, 18432, 18640, 20970, 22368, 23040, 27960, 29824, 30720, 33552, 37280, 41940, 44736, 46080, 55920, 59648, 67104, 74560, 83880, 89472, 92160, 111840, 119296, 134208, 149120, 167760, 178944, 223680, 238592, 268416, 298240, 335520, 357888, 447360, 477184, 536832, 596480, 671040, 715776, 894720, 1073664, 1192960, 1342080, 1431552, 1789440, 2147328, 2385920, 2684160, 3578880, 4294656, 5368320, 7157760, 10736640, 21473280]

約数ペア:

[(1, 21473280), (2, 10736640), (3, 7157760), (4, 5368320), (5, 4294656), (6, 3578880), (8, 2684160), (9, 2385920), (10, 2147328), (12, 1789440), (15, 1431552), (16, 1342080), (18, 1192960), (20, 1073664), (24, 894720), (30, 715776), (32, 671040), (36, 596480), (40, 536832), (45, 477184), (48, 447360), (60, 357888), (64, 335520), (72, 298240), (80, 268416), (90, 238592), (96, 223680), (120, 178944), (128, 167760), (144, 149120), (160, 134208), (180, 119296), (192, 111840), (233, 92160), (240, 89472), (256, 83880), (288, 74560), (320, 67104), (360, 59648), (384, 55920), (466, 46080), (480, 44736), (512, 41940), (576, 37280), (640, 33552), (699, 30720), (720, 29824), (768, 27960), (932, 23040), (960, 22368), (1024, 20970), (1152, 18640), (1165, 18432), (1280, 16776), (1398, 15360), (1440, 14912), (1536, 13980), (1864, 11520), (1920, 11184), (2048, 10485), (2097, 10240), (2304, 9320), (2330, 9216), (2560, 8388), (2796, 7680), (2880, 7456), (3072, 6990), (3495, 6144), (3728, 5760), (3840, 5592), (4194, 5120), (4608, 4660)]