80689168

素因数分解:

$2^4\times 7^1\times {\mathrm{720439}}^1$

素因数の和:720454

約数の個数: 20

約数和(自身を含む): 178669120

約数和(自身を除く): 97979952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 720439, 1440878, 2881756, 5043073, 5763512, 10086146, 11527024, 20172292, 40344584, 80689168]

約数ペア:

[(1, 80689168), (2, 40344584), (4, 20172292), (7, 11527024), (8, 10086146), (14, 5763512), (16, 5043073), (28, 2881756), (56, 1440878), (112, 720439)]