2807900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{653}}^1$

素因数の和:710

約数の個数: 36

約数和(自身を含む): 6244392

約数和(自身を除く): 3436492

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 653, 860, 1075, 1306, 2150, 2612, 3265, 4300, 6530, 13060, 16325, 28079, 32650, 56158, 65300, 112316, 140395, 280790, 561580, 701975, 1403950, 2807900]

約数ペア:

[(1, 2807900), (2, 1403950), (4, 701975), (5, 561580), (10, 280790), (20, 140395), (25, 112316), (43, 65300), (50, 56158), (86, 32650), (100, 28079), (172, 16325), (215, 13060), (430, 6530), (653, 4300), (860, 3265), (1075, 2612), (1306, 2150)]