18744340

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{6841}}^1$

素因数の和:6987

約数の個数: 24

約数和(自身を含む): 39656232

約数和(自身を除く): 20911892

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 6841, 13682, 27364, 34205, 68410, 136820, 937217, 1874434, 3748868, 4686085, 9372170, 18744340]

約数ペア:

[(1, 18744340), (2, 9372170), (4, 4686085), (5, 3748868), (10, 1874434), (20, 937217), (137, 136820), (274, 68410), (548, 34205), (685, 27364), (1370, 13682), (2740, 6841)]