81471935

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1\times {\mathrm{821}}^1$

素因数の和:1138

約数の個数: 16

約数和(自身を含む): 99429120

約数和(自身を除く): 17957185

約数列:

[1, 5, 89, 223, 445, 821, 1115, 4105, 19847, 73069, 99235, 183083, 365345, 915415, 16294387, 81471935]

約数ペア:

[(1, 81471935), (5, 16294387), (89, 915415), (223, 365345), (445, 183083), (821, 99235), (1115, 73069), (4105, 19847)]