138125800

素因数分解:

$2^3\times 5^2\times {\mathrm{690629}}^1$

素因数の和:690645

約数の個数: 24

約数和(自身を含む): 321142950

約数和(自身を除く): 183017150

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 690629, 1381258, 2762516, 3453145, 5525032, 6906290, 13812580, 17265725, 27625160, 34531450, 69062900, 138125800]

約数ペア:

[(1, 138125800), (2, 69062900), (4, 34531450), (5, 27625160), (8, 17265725), (10, 13812580), (20, 6906290), (25, 5525032), (40, 3453145), (50, 2762516), (100, 1381258), (200, 690629)]