51439400

素因数分解:

$2^3\times 5^2\times {\mathrm{311}}^1\times {\mathrm{827}}^1$

素因数の和:1154

約数の個数: 48

約数和(自身を含む): 120126240

約数和(自身を除く): 68686840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 311, 622, 827, 1244, 1555, 1654, 2488, 3110, 3308, 4135, 6220, 6616, 7775, 8270, 12440, 15550, 16540, 20675, 31100, 33080, 41350, 62200, 82700, 165400, 257197, 514394, 1028788, 1285985, 2057576, 2571970, 5143940, 6429925, 10287880, 12859850, 25719700, 51439400]

約数ペア:

[(1, 51439400), (2, 25719700), (4, 12859850), (5, 10287880), (8, 6429925), (10, 5143940), (20, 2571970), (25, 2057576), (40, 1285985), (50, 1028788), (100, 514394), (200, 257197), (311, 165400), (622, 82700), (827, 62200), (1244, 41350), (1555, 33080), (1654, 31100), (2488, 20675), (3110, 16540), (3308, 15550), (4135, 12440), (6220, 8270), (6616, 7775)]