81505204

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{9403}}^1$

素因数の和:9615

約数の個数: 24

約数和(自身を含む): 156407328

約数和(自身を除く): 74902124

約数列:

[1, 2, 4, 11, 22, 44, 197, 394, 788, 2167, 4334, 8668, 9403, 18806, 37612, 103433, 206866, 413732, 1852391, 3704782, 7409564, 20376301, 40752602, 81505204]

約数ペア:

[(1, 81505204), (2, 40752602), (4, 20376301), (11, 7409564), (22, 3704782), (44, 1852391), (197, 413732), (394, 206866), (788, 103433), (2167, 37612), (4334, 18806), (8668, 9403)]