127489640

素因数分解:

$2^3\times 5^1\times {\mathrm{3187241}}^1$

素因数の和:3187252

約数の個数: 16

約数和(自身を含む): 286851780

約数和(自身を除く): 159362140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3187241, 6374482, 12748964, 15936205, 25497928, 31872410, 63744820, 127489640]

約数ペア:

[(1, 127489640), (2, 63744820), (4, 31872410), (5, 25497928), (8, 15936205), (10, 12748964), (20, 6374482), (40, 3187241)]