12872000

素因数分解:

$2^6\times 5^3\times {\mathrm{1609}}^1$

素因数の和:1636

約数の個数: 56

約数和(自身を含む): 31897320

約数和(自身を除く): 19025320

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, 1609, 2000, 3218, 4000, 6436, 8000, 8045, 12872, 16090, 25744, 32180, 40225, 51488, 64360, 80450, 102976, 128720, 160900, 201125, 257440, 321800, 402250, 514880, 643600, 804500, 1287200, 1609000, 2574400, 3218000, 6436000, 12872000]

約数ペア:

[(1, 12872000), (2, 6436000), (4, 3218000), (5, 2574400), (8, 1609000), (10, 1287200), (16, 804500), (20, 643600), (25, 514880), (32, 402250), (40, 321800), (50, 257440), (64, 201125), (80, 160900), (100, 128720), (125, 102976), (160, 80450), (200, 64360), (250, 51488), (320, 40225), (400, 32180), (500, 25744), (800, 16090), (1000, 12872), (1600, 8045), (1609, 8000), (2000, 6436), (3218, 4000)]