21815040

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:79

約数の個数: 288

約数和(自身を含む): 82414080

約数和(自身を除く): 60599040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 19, 20, 23, 24, 26, 30, 32, 38, 39, 40, 46, 48, 52, 57, 60, 64, 65, 69, 76, 78, 80, 92, 95, 96, 104, 114, 115, 120, 128, 130, 138, 152, 156, 160, 184, 190, 192, 195, 208, 228, 230, 240, 247, 256, 260, 276, 285, 299, 304, 312, 320, 345, 368, 380, 384, 390, 416, 437, 456, 460, 480, 494, 520, 552, 570, 598, 608, 624, 640, 690, 736, 741, 760, 768, 780, 832, 874, 897, 912, 920, 960, 988, 1040, 1104, 1140, 1196, 1216, 1235, 1248, 1280, 1311, 1380, 1472, 1482, 1495, 1520, 1560, 1664, 1748, 1794, 1824, 1840, 1920, 1976, 2080, 2185, 2208, 2280, 2392, 2432, 2470, 2496, 2622, 2760, 2944, 2964, 2990, 3040, 3120, 3328, 3496, 3588, 3648, 3680, 3705, 3840, 3952, 4160, 4370, 4416, 4485, 4560, 4784, 4864, 4940, 4992, 5244, 5520, 5681, 5888, 5928, 5980, 6080, 6240, 6555, 6992, 7176, 7296, 7360, 7410, 7904, 8320, 8740, 8832, 8970, 9120, 9568, 9880, 9984, 10488, 11040, 11362, 11856, 11960, 12160, 12480, 13110, 13984, 14352, 14592, 14720, 14820, 15808, 16640, 17043, 17480, 17664, 17940, 18240, 19136, 19760, 20976, 22080, 22724, 23712, 23920, 24320, 24960, 26220, 27968, 28405, 28704, 29440, 29640, 31616, 34086, 34960, 35880, 36480, 38272, 39520, 41952, 44160, 45448, 47424, 47840, 49920, 52440, 55936, 56810, 57408, 59280, 63232, 68172, 69920, 71760, 72960, 76544, 79040, 83904, 85215, 88320, 90896, 94848, 95680, 104880, 111872, 113620, 114816, 118560, 136344, 139840, 143520, 158080, 167808, 170430, 181792, 189696, 191360, 209760, 227240, 229632, 237120, 272688, 279680, 287040, 316160, 335616, 340860, 363584, 382720, 419520, 454480, 474240, 545376, 559360, 574080, 681720, 727168, 839040, 908960, 948480, 1090752, 1148160, 1363440, 1454336, 1678080, 1817920, 2181504, 2726880, 3635840, 4363008, 5453760, 7271680, 10907520, 21815040]

約数ペア:

[(1, 21815040), (2, 10907520), (3, 7271680), (4, 5453760), (5, 4363008), (6, 3635840), (8, 2726880), (10, 2181504), (12, 1817920), (13, 1678080), (15, 1454336), (16, 1363440), (19, 1148160), (20, 1090752), (23, 948480), (24, 908960), (26, 839040), (30, 727168), (32, 681720), (38, 574080), (39, 559360), (40, 545376), (46, 474240), (48, 454480), (52, 419520), (57, 382720), (60, 363584), (64, 340860), (65, 335616), (69, 316160), (76, 287040), (78, 279680), (80, 272688), (92, 237120), (95, 229632), (96, 227240), (104, 209760), (114, 191360), (115, 189696), (120, 181792), (128, 170430), (130, 167808), (138, 158080), (152, 143520), (156, 139840), (160, 136344), (184, 118560), (190, 114816), (192, 113620), (195, 111872), (208, 104880), (228, 95680), (230, 94848), (240, 90896), (247, 88320), (256, 85215), (260, 83904), (276, 79040), (285, 76544), (299, 72960), (304, 71760), (312, 69920), (320, 68172), (345, 63232), (368, 59280), (380, 57408), (384, 56810), (390, 55936), (416, 52440), (437, 49920), (456, 47840), (460, 47424), (480, 45448), (494, 44160), (520, 41952), (552, 39520), (570, 38272), (598, 36480), (608, 35880), (624, 34960), (640, 34086), (690, 31616), (736, 29640), (741, 29440), (760, 28704), (768, 28405), (780, 27968), (832, 26220), (874, 24960), (897, 24320), (912, 23920), (920, 23712), (960, 22724), (988, 22080), (1040, 20976), (1104, 19760), (1140, 19136), (1196, 18240), (1216, 17940), (1235, 17664), (1248, 17480), (1280, 17043), (1311, 16640), (1380, 15808), (1472, 14820), (1482, 14720), (1495, 14592), (1520, 14352), (1560, 13984), (1664, 13110), (1748, 12480), (1794, 12160), (1824, 11960), (1840, 11856), (1920, 11362), (1976, 11040), (2080, 10488), (2185, 9984), (2208, 9880), (2280, 9568), (2392, 9120), (2432, 8970), (2470, 8832), (2496, 8740), (2622, 8320), (2760, 7904), (2944, 7410), (2964, 7360), (2990, 7296), (3040, 7176), (3120, 6992), (3328, 6555), (3496, 6240), (3588, 6080), (3648, 5980), (3680, 5928), (3705, 5888), (3840, 5681), (3952, 5520), (4160, 5244), (4370, 4992), (4416, 4940), (4485, 4864), (4560, 4784)]