1854622720

素因数分解:

$2^{10}\times 5^1\times {\mathrm{359}}^1\times {\mathrm{1009}}^1$

素因数の和:1393

約数の個数: 88

約数和(自身を含む): 4465735200

約数和(自身を除く): 2611112480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 359, 512, 640, 718, 1009, 1024, 1280, 1436, 1795, 2018, 2560, 2872, 3590, 4036, 5045, 5120, 5744, 7180, 8072, 10090, 11488, 14360, 16144, 20180, 22976, 28720, 32288, 40360, 45952, 57440, 64576, 80720, 91904, 114880, 129152, 161440, 183808, 229760, 258304, 322880, 362231, 367616, 459520, 516608, 645760, 724462, 919040, 1033216, 1291520, 1448924, 1811155, 1838080, 2583040, 2897848, 3622310, 5166080, 5795696, 7244620, 11591392, 14489240, 23182784, 28978480, 46365568, 57956960, 92731136, 115913920, 185462272, 231827840, 370924544, 463655680, 927311360, 1854622720]

約数ペア:

[(1, 1854622720), (2, 927311360), (4, 463655680), (5, 370924544), (8, 231827840), (10, 185462272), (16, 115913920), (20, 92731136), (32, 57956960), (40, 46365568), (64, 28978480), (80, 23182784), (128, 14489240), (160, 11591392), (256, 7244620), (320, 5795696), (359, 5166080), (512, 3622310), (640, 2897848), (718, 2583040), (1009, 1838080), (1024, 1811155), (1280, 1448924), (1436, 1291520), (1795, 1033216), (2018, 919040), (2560, 724462), (2872, 645760), (3590, 516608), (4036, 459520), (5045, 367616), (5120, 362231), (5744, 322880), (7180, 258304), (8072, 229760), (10090, 183808), (11488, 161440), (14360, 129152), (16144, 114880), (20180, 91904), (22976, 80720), (28720, 64576), (32288, 57440), (40360, 45952)]