81156292

素因数分解:

$2^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{7451}}^1$

素因数の和:7851

約数の個数: 24

約数和(自身を含む): 162751680

約数和(自身を除く): 81595388

約数列:

[1, 2, 4, 7, 14, 28, 389, 778, 1556, 2723, 5446, 7451, 10892, 14902, 29804, 52157, 104314, 208628, 2898439, 5796878, 11593756, 20289073, 40578146, 81156292]

約数ペア:

[(1, 81156292), (2, 40578146), (4, 20289073), (7, 11593756), (14, 5796878), (28, 2898439), (389, 208628), (778, 104314), (1556, 52157), (2723, 29804), (5446, 14902), (7451, 10892)]