1261892678

素因数分解:

$2^1\times {\mathrm{313}}^1\times {\mathrm{317}}^1\times {\mathrm{6359}}^1$

素因数の和:6991

約数の個数: 16

約数和(自身を含む): 1905176160

約数和(自身を除く): 643283482

約数列:

[1, 2, 313, 317, 626, 634, 6359, 12718, 99221, 198442, 1990367, 2015803, 3980734, 4031606, 630946339, 1261892678]

約数ペア:

[(1, 1261892678), (2, 630946339), (313, 4031606), (317, 3980734), (626, 2015803), (634, 1990367), (6359, 198442), (12718, 99221)]