1555260040

素因数分解:

$2^3\times 5^1\times {\mathrm{38881501}}^1$

素因数の和:38881512

約数の個数: 16

約数和(自身を含む): 3499335180

約数和(自身を除く): 1944075140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 38881501, 77763002, 155526004, 194407505, 311052008, 388815010, 777630020, 1555260040]

約数ペア:

[(1, 1555260040), (2, 777630020), (4, 388815010), (5, 311052008), (8, 194407505), (10, 155526004), (20, 77763002), (40, 38881501)]