21232640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1$

素因数の和:78

約数の個数: 176

約数和(自身を含む): 61901280

約数和(自身を除く): 40668640

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 29, 32, 40, 44, 52, 55, 58, 64, 65, 80, 88, 104, 110, 116, 128, 130, 143, 145, 160, 176, 208, 220, 232, 256, 260, 286, 290, 319, 320, 352, 377, 416, 440, 464, 512, 520, 572, 580, 638, 640, 704, 715, 754, 832, 880, 928, 1024, 1040, 1144, 1160, 1276, 1280, 1408, 1430, 1508, 1595, 1664, 1760, 1856, 1885, 2080, 2288, 2320, 2552, 2560, 2816, 2860, 3016, 3190, 3328, 3520, 3712, 3770, 4147, 4160, 4576, 4640, 5104, 5120, 5632, 5720, 6032, 6380, 6656, 7040, 7424, 7540, 8294, 8320, 9152, 9280, 10208, 11264, 11440, 12064, 12760, 13312, 14080, 14848, 15080, 16588, 16640, 18304, 18560, 20416, 20735, 22880, 24128, 25520, 28160, 29696, 30160, 33176, 33280, 36608, 37120, 40832, 41470, 45760, 48256, 51040, 56320, 60320, 66352, 66560, 73216, 74240, 81664, 82940, 91520, 96512, 102080, 120640, 132704, 146432, 148480, 163328, 165880, 183040, 193024, 204160, 241280, 265408, 326656, 331760, 366080, 386048, 408320, 482560, 530816, 663520, 732160, 816640, 965120, 1061632, 1327040, 1633280, 1930240, 2123264, 2654080, 4246528, 5308160, 10616320, 21232640]

約数ペア:

[(1, 21232640), (2, 10616320), (4, 5308160), (5, 4246528), (8, 2654080), (10, 2123264), (11, 1930240), (13, 1633280), (16, 1327040), (20, 1061632), (22, 965120), (26, 816640), (29, 732160), (32, 663520), (40, 530816), (44, 482560), (52, 408320), (55, 386048), (58, 366080), (64, 331760), (65, 326656), (80, 265408), (88, 241280), (104, 204160), (110, 193024), (116, 183040), (128, 165880), (130, 163328), (143, 148480), (145, 146432), (160, 132704), (176, 120640), (208, 102080), (220, 96512), (232, 91520), (256, 82940), (260, 81664), (286, 74240), (290, 73216), (319, 66560), (320, 66352), (352, 60320), (377, 56320), (416, 51040), (440, 48256), (464, 45760), (512, 41470), (520, 40832), (572, 37120), (580, 36608), (638, 33280), (640, 33176), (704, 30160), (715, 29696), (754, 28160), (832, 25520), (880, 24128), (928, 22880), (1024, 20735), (1040, 20416), (1144, 18560), (1160, 18304), (1276, 16640), (1280, 16588), (1408, 15080), (1430, 14848), (1508, 14080), (1595, 13312), (1664, 12760), (1760, 12064), (1856, 11440), (1885, 11264), (2080, 10208), (2288, 9280), (2320, 9152), (2552, 8320), (2560, 8294), (2816, 7540), (2860, 7424), (3016, 7040), (3190, 6656), (3328, 6380), (3520, 6032), (3712, 5720), (3770, 5632), (4147, 5120), (4160, 5104), (4576, 4640)]