81485516

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67679}}^1$

素因数の和:67733

約数の個数: 24

約数和(自身を含む): 166763520

約数和(自身を除く): 85278004

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 67679, 135358, 270716, 473753, 947506, 1895012, 2910197, 5820394, 11640788, 20371379, 40742758, 81485516]

約数ペア:

[(1, 81485516), (2, 40742758), (4, 20371379), (7, 11640788), (14, 5820394), (28, 2910197), (43, 1895012), (86, 947506), (172, 473753), (301, 270716), (602, 135358), (1204, 67679)]