8570000

素因数分解:

$2^4\times 5^4\times {\mathrm{857}}^1$

素因数の和:885

約数の個数: 50

約数和(自身を含む): 20773038

約数和(自身を除く): 12203038

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 857, 1000, 1250, 1714, 2000, 2500, 3428, 4285, 5000, 6856, 8570, 10000, 13712, 17140, 21425, 34280, 42850, 68560, 85700, 107125, 171400, 214250, 342800, 428500, 535625, 857000, 1071250, 1714000, 2142500, 4285000, 8570000]

約数ペア:

[(1, 8570000), (2, 4285000), (4, 2142500), (5, 1714000), (8, 1071250), (10, 857000), (16, 535625), (20, 428500), (25, 342800), (40, 214250), (50, 171400), (80, 107125), (100, 85700), (125, 68560), (200, 42850), (250, 34280), (400, 21425), (500, 17140), (625, 13712), (857, 10000), (1000, 8570), (1250, 6856), (1714, 5000), (2000, 4285), (2500, 3428)]