3980800

素因数分解:

$2^9\times 5^2\times {\mathrm{311}}^1$

素因数の和:339

約数の個数: 60

約数和(自身を含む): 9894456

約数和(自身を除く): 5913656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 311, 320, 400, 512, 622, 640, 800, 1244, 1280, 1555, 1600, 2488, 2560, 3110, 3200, 4976, 6220, 6400, 7775, 9952, 12440, 12800, 15550, 19904, 24880, 31100, 39808, 49760, 62200, 79616, 99520, 124400, 159232, 199040, 248800, 398080, 497600, 796160, 995200, 1990400, 3980800]

約数ペア:

[(1, 3980800), (2, 1990400), (4, 995200), (5, 796160), (8, 497600), (10, 398080), (16, 248800), (20, 199040), (25, 159232), (32, 124400), (40, 99520), (50, 79616), (64, 62200), (80, 49760), (100, 39808), (128, 31100), (160, 24880), (200, 19904), (256, 15550), (311, 12800), (320, 12440), (400, 9952), (512, 7775), (622, 6400), (640, 6220), (800, 4976), (1244, 3200), (1280, 3110), (1555, 2560), (1600, 2488)]