80821756

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{185371}}^1$

素因数の和:185484

約数の個数: 12

約数和(自身を含む): 142736440

約数和(自身を除く): 61914684

約数列:

[1, 2, 4, 109, 218, 436, 185371, 370742, 741484, 20205439, 40410878, 80821756]

約数ペア:

[(1, 80821756), (2, 40410878), (4, 20205439), (109, 741484), (218, 370742), (436, 185371)]