405580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2897}}^1$

素因数の和:2913

約数の個数: 24

約数和(自身を含む): 973728

約数和(自身を除く): 568148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2897, 5794, 11588, 14485, 20279, 28970, 40558, 57940, 81116, 101395, 202790, 405580]

約数ペア:

[(1, 405580), (2, 202790), (4, 101395), (5, 81116), (7, 57940), (10, 40558), (14, 28970), (20, 20279), (28, 14485), (35, 11588), (70, 5794), (140, 2897)]