21304000

素因数分解:

$2^6\times 5^3\times {\mathrm{2663}}^1$

素因数の和:2690

約数の個数: 56

約数和(自身を含む): 52779168

約数和(自身を除く): 31475168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 800, 1000, 1600, 2000, 2663, 4000, 5326, 8000, 10652, 13315, 21304, 26630, 42608, 53260, 66575, 85216, 106520, 133150, 170432, 213040, 266300, 332875, 426080, 532600, 665750, 852160, 1065200, 1331500, 2130400, 2663000, 4260800, 5326000, 10652000, 21304000]

約数ペア:

[(1, 21304000), (2, 10652000), (4, 5326000), (5, 4260800), (8, 2663000), (10, 2130400), (16, 1331500), (20, 1065200), (25, 852160), (32, 665750), (40, 532600), (50, 426080), (64, 332875), (80, 266300), (100, 213040), (125, 170432), (160, 133150), (200, 106520), (250, 85216), (320, 66575), (400, 53260), (500, 42608), (800, 26630), (1000, 21304), (1600, 13315), (2000, 10652), (2663, 8000), (4000, 5326)]