80640218

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{21011}}^1$

素因数の和:21133

約数の個数: 16

約数和(自身を含む): 128593440

約数和(自身を除く): 47953222

約数列:

[1, 2, 19, 38, 101, 202, 1919, 3838, 21011, 42022, 399209, 798418, 2122111, 4244222, 40320109, 80640218]

約数ペア:

[(1, 80640218), (2, 40320109), (19, 4244222), (38, 2122111), (101, 798418), (202, 399209), (1919, 42022), (3838, 21011)]