81900545

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{6581}}^1$

素因数の和:6736

約数の個数: 16

約数和(自身を含む): 104258880

約数和(自身を除く): 22358335

約数列:

[1, 5, 19, 95, 131, 655, 2489, 6581, 12445, 32905, 125039, 625195, 862111, 4310555, 16380109, 81900545]

約数ペア:

[(1, 81900545), (5, 16380109), (19, 4310555), (95, 862111), (131, 625195), (655, 125039), (2489, 32905), (6581, 12445)]