28656640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:247

約数の個数: 88

約数和(自身を含む): 71481240

約数和(自身を除く): 42824600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 193, 232, 256, 290, 320, 386, 464, 512, 580, 640, 772, 928, 965, 1024, 1160, 1280, 1544, 1856, 1930, 2320, 2560, 3088, 3712, 3860, 4640, 5120, 5597, 6176, 7424, 7720, 9280, 11194, 12352, 14848, 15440, 18560, 22388, 24704, 27985, 29696, 30880, 37120, 44776, 49408, 55970, 61760, 74240, 89552, 98816, 111940, 123520, 148480, 179104, 197632, 223880, 247040, 358208, 447760, 494080, 716416, 895520, 988160, 1432832, 1791040, 2865664, 3582080, 5731328, 7164160, 14328320, 28656640]

約数ペア:

[(1, 28656640), (2, 14328320), (4, 7164160), (5, 5731328), (8, 3582080), (10, 2865664), (16, 1791040), (20, 1432832), (29, 988160), (32, 895520), (40, 716416), (58, 494080), (64, 447760), (80, 358208), (116, 247040), (128, 223880), (145, 197632), (160, 179104), (193, 148480), (232, 123520), (256, 111940), (290, 98816), (320, 89552), (386, 74240), (464, 61760), (512, 55970), (580, 49408), (640, 44776), (772, 37120), (928, 30880), (965, 29696), (1024, 27985), (1160, 24704), (1280, 22388), (1544, 18560), (1856, 15440), (1930, 14848), (2320, 12352), (2560, 11194), (3088, 9280), (3712, 7720), (3860, 7424), (4640, 6176), (5120, 5597)]