20209700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{28871}}^1$

素因数の和:28892

約数の個数: 36

約数和(自身を含む): 50121792

約数和(自身を除く): 29912092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 28871, 57742, 115484, 144355, 202097, 288710, 404194, 577420, 721775, 808388, 1010485, 1443550, 2020970, 2887100, 4041940, 5052425, 10104850, 20209700]

約数ペア:

[(1, 20209700), (2, 10104850), (4, 5052425), (5, 4041940), (7, 2887100), (10, 2020970), (14, 1443550), (20, 1010485), (25, 808388), (28, 721775), (35, 577420), (50, 404194), (70, 288710), (100, 202097), (140, 144355), (175, 115484), (350, 57742), (700, 28871)]