81067820

素因数分解:

$2^2\times 5^1\times {\mathrm{373}}^1\times {\mathrm{10867}}^1$

素因数の和:11249

約数の個数: 24

約数和(自身を含む): 170714544

約数和(自身を除く): 89646724

約数列:

[1, 2, 4, 5, 10, 20, 373, 746, 1492, 1865, 3730, 7460, 10867, 21734, 43468, 54335, 108670, 217340, 4053391, 8106782, 16213564, 20266955, 40533910, 81067820]

約数ペア:

[(1, 81067820), (2, 40533910), (4, 20266955), (5, 16213564), (10, 8106782), (20, 4053391), (373, 217340), (746, 108670), (1492, 54335), (1865, 43468), (3730, 21734), (7460, 10867)]