178442020

素因数分解:

$2^2\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{6911}}^1$

素因数の和:8211

約数の個数: 24

約数和(自身を含む): 375072768

約数和(自身を除く): 196630748

約数列:

[1, 2, 4, 5, 10, 20, 1291, 2582, 5164, 6455, 6911, 12910, 13822, 25820, 27644, 34555, 69110, 138220, 8922101, 17844202, 35688404, 44610505, 89221010, 178442020]

約数ペア:

[(1, 178442020), (2, 89221010), (4, 44610505), (5, 35688404), (10, 17844202), (20, 8922101), (1291, 138220), (2582, 69110), (5164, 34555), (6455, 27644), (6911, 25820), (12910, 13822)]