12805456

素因数分解:

$2^4\times {\mathrm{313}}^1\times {\mathrm{2557}}^1$

素因数の和:2878

約数の個数: 20

約数和(自身を含む): 24899572

約数和(自身を除く): 12094116

約数列:

[1, 2, 4, 8, 16, 313, 626, 1252, 2504, 2557, 5008, 5114, 10228, 20456, 40912, 800341, 1600682, 3201364, 6402728, 12805456]

約数ペア:

[(1, 12805456), (2, 6402728), (4, 3201364), (8, 1600682), (16, 800341), (313, 40912), (626, 20456), (1252, 10228), (2504, 5114), (2557, 5008)]