24880000

素因数分解:

$2^7\times 5^4\times {\mathrm{311}}^1$

素因数の和:345

約数の個数: 80

約数和(自身を含む): 62136360

約数和(自身を除く): 37256360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 311, 320, 400, 500, 622, 625, 640, 800, 1000, 1244, 1250, 1555, 1600, 2000, 2488, 2500, 3110, 3200, 4000, 4976, 5000, 6220, 7775, 8000, 9952, 10000, 12440, 15550, 16000, 19904, 20000, 24880, 31100, 38875, 39808, 40000, 49760, 62200, 77750, 80000, 99520, 124400, 155500, 194375, 199040, 248800, 311000, 388750, 497600, 622000, 777500, 995200, 1244000, 1555000, 2488000, 3110000, 4976000, 6220000, 12440000, 24880000]

約数ペア:

[(1, 24880000), (2, 12440000), (4, 6220000), (5, 4976000), (8, 3110000), (10, 2488000), (16, 1555000), (20, 1244000), (25, 995200), (32, 777500), (40, 622000), (50, 497600), (64, 388750), (80, 311000), (100, 248800), (125, 199040), (128, 194375), (160, 155500), (200, 124400), (250, 99520), (311, 80000), (320, 77750), (400, 62200), (500, 49760), (622, 40000), (625, 39808), (640, 38875), (800, 31100), (1000, 24880), (1244, 20000), (1250, 19904), (1555, 16000), (1600, 15550), (2000, 12440), (2488, 10000), (2500, 9952), (3110, 8000), (3200, 7775), (4000, 6220), (4976, 5000)]