21028000

素因数分解:

$2^5\times 5^3\times 7^1\times {\mathrm{751}}^1$

素因数の和:783

約数の個数: 96

約数和(自身を含む): 59125248

約数和(自身を除く): 38097248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 160, 175, 200, 224, 250, 280, 350, 400, 500, 560, 700, 751, 800, 875, 1000, 1120, 1400, 1502, 1750, 2000, 2800, 3004, 3500, 3755, 4000, 5257, 5600, 6008, 7000, 7510, 10514, 12016, 14000, 15020, 18775, 21028, 24032, 26285, 28000, 30040, 37550, 42056, 52570, 60080, 75100, 84112, 93875, 105140, 120160, 131425, 150200, 168224, 187750, 210280, 262850, 300400, 375500, 420560, 525700, 600800, 657125, 751000, 841120, 1051400, 1314250, 1502000, 2102800, 2628500, 3004000, 4205600, 5257000, 10514000, 21028000]

約数ペア:

[(1, 21028000), (2, 10514000), (4, 5257000), (5, 4205600), (7, 3004000), (8, 2628500), (10, 2102800), (14, 1502000), (16, 1314250), (20, 1051400), (25, 841120), (28, 751000), (32, 657125), (35, 600800), (40, 525700), (50, 420560), (56, 375500), (70, 300400), (80, 262850), (100, 210280), (112, 187750), (125, 168224), (140, 150200), (160, 131425), (175, 120160), (200, 105140), (224, 93875), (250, 84112), (280, 75100), (350, 60080), (400, 52570), (500, 42056), (560, 37550), (700, 30040), (751, 28000), (800, 26285), (875, 24032), (1000, 21028), (1120, 18775), (1400, 15020), (1502, 14000), (1750, 12016), (2000, 10514), (2800, 7510), (3004, 7000), (3500, 6008), (3755, 5600), (4000, 5257)]