71665580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{511897}}^1$

素因数の和:511913

約数の個数: 24

約数和(自身を含む): 171997728

約数和(自身を除く): 100332148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 511897, 1023794, 2047588, 2559485, 3583279, 5118970, 7166558, 10237940, 14333116, 17916395, 35832790, 71665580]

約数ペア:

[(1, 71665580), (2, 35832790), (4, 17916395), (5, 14333116), (7, 10237940), (10, 7166558), (14, 5118970), (20, 3583279), (28, 2559485), (35, 2047588), (70, 1023794), (140, 511897)]