86438780

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{31547}}^1$

素因数の和:31693

約数の個数: 24

約数和(自身を含む): 182852208

約数和(自身を除く): 96413428

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 31547, 63094, 126188, 157735, 315470, 630940, 4321939, 8643878, 17287756, 21609695, 43219390, 86438780]

約数ペア:

[(1, 86438780), (2, 43219390), (4, 21609695), (5, 17287756), (10, 8643878), (20, 4321939), (137, 630940), (274, 315470), (548, 157735), (685, 126188), (1370, 63094), (2740, 31547)]