78487184

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{35291}}^1$

素因数の和:35438

約数の個数: 20

約数和(自身を含む): 153167280

約数和(自身を除く): 74680096

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 35291, 70582, 141164, 282328, 564656, 4905449, 9810898, 19621796, 39243592, 78487184]

約数ペア:

[(1, 78487184), (2, 39243592), (4, 19621796), (8, 9810898), (16, 4905449), (139, 564656), (278, 282328), (556, 141164), (1112, 70582), (2224, 35291)]