81301336

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{80021}}^1$

素因数の和:80154

約数の個数: 16

約数和(自身を含む): 153642240

約数和(自身を除く): 72340904

約数列:

[1, 2, 4, 8, 127, 254, 508, 1016, 80021, 160042, 320084, 640168, 10162667, 20325334, 40650668, 81301336]

約数ペア:

[(1, 81301336), (2, 40650668), (4, 20325334), (8, 10162667), (127, 640168), (254, 320084), (508, 160042), (1016, 80021)]