2558000

素因数分解:

$2^4\times 5^3\times {\mathrm{1279}}^1$

素因数の和:1302

約数の個数: 40

約数和(自身を含む): 6190080

約数和(自身を除く): 3632080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 1279, 2000, 2558, 5116, 6395, 10232, 12790, 20464, 25580, 31975, 51160, 63950, 102320, 127900, 159875, 255800, 319750, 511600, 639500, 1279000, 2558000]

約数ペア:

[(1, 2558000), (2, 1279000), (4, 639500), (5, 511600), (8, 319750), (10, 255800), (16, 159875), (20, 127900), (25, 102320), (40, 63950), (50, 51160), (80, 31975), (100, 25580), (125, 20464), (200, 12790), (250, 10232), (400, 6395), (500, 5116), (1000, 2558), (1279, 2000)]