80798780

素因数分解:

$2^2\times 5^1\times {\mathrm{727}}^1\times {\mathrm{5557}}^1$

素因数の和:6293

約数の個数: 24

約数和(自身を含む): 169941408

約数和(自身を除く): 89142628

約数列:

[1, 2, 4, 5, 10, 20, 727, 1454, 2908, 3635, 5557, 7270, 11114, 14540, 22228, 27785, 55570, 111140, 4039939, 8079878, 16159756, 20199695, 40399390, 80798780]

約数ペア:

[(1, 80798780), (2, 40399390), (4, 20199695), (5, 16159756), (10, 8079878), (20, 4039939), (727, 111140), (1454, 55570), (2908, 27785), (3635, 22228), (5557, 14540), (7270, 11114)]