85468820

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{31193}}^1$

素因数の和:31339

約数の個数: 24

約数和(自身を含む): 180800424

約数和(自身を除く): 95331604

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 31193, 62386, 124772, 155965, 311930, 623860, 4273441, 8546882, 17093764, 21367205, 42734410, 85468820]

約数ペア:

[(1, 85468820), (2, 42734410), (4, 21367205), (5, 17093764), (10, 8546882), (20, 4273441), (137, 623860), (274, 311930), (548, 155965), (685, 124772), (1370, 62386), (2740, 31193)]