19861940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{141871}}^1$

素因数の和:141887

約数の個数: 24

約数和(自身を含む): 47668992

約数和(自身を除く): 27807052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 141871, 283742, 567484, 709355, 993097, 1418710, 1986194, 2837420, 3972388, 4965485, 9930970, 19861940]

約数ペア:

[(1, 19861940), (2, 9930970), (4, 4965485), (5, 3972388), (7, 2837420), (10, 1986194), (14, 1418710), (20, 993097), (28, 709355), (35, 567484), (70, 283742), (140, 141871)]