51488000

素因数分解:

$2^8\times 5^3\times {\mathrm{1609}}^1$

素因数の和:1640

約数の個数: 72

約数和(自身を含む): 128342760

約数和(自身を除く): 76854760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 640, 800, 1000, 1280, 1600, 1609, 2000, 3200, 3218, 4000, 6400, 6436, 8000, 8045, 12872, 16000, 16090, 25744, 32000, 32180, 40225, 51488, 64360, 80450, 102976, 128720, 160900, 201125, 205952, 257440, 321800, 402250, 411904, 514880, 643600, 804500, 1029760, 1287200, 1609000, 2059520, 2574400, 3218000, 5148800, 6436000, 10297600, 12872000, 25744000, 51488000]

約数ペア:

[(1, 51488000), (2, 25744000), (4, 12872000), (5, 10297600), (8, 6436000), (10, 5148800), (16, 3218000), (20, 2574400), (25, 2059520), (32, 1609000), (40, 1287200), (50, 1029760), (64, 804500), (80, 643600), (100, 514880), (125, 411904), (128, 402250), (160, 321800), (200, 257440), (250, 205952), (256, 201125), (320, 160900), (400, 128720), (500, 102976), (640, 80450), (800, 64360), (1000, 51488), (1280, 40225), (1600, 32180), (1609, 32000), (2000, 25744), (3200, 16090), (3218, 16000), (4000, 12872), (6400, 8045), (6436, 8000)]