25601560

素因数分解:

$2^3\times 5^1\times {\mathrm{640039}}^1$

素因数の和:640050

約数の個数: 16

約数和(自身を含む): 57603600

約数和(自身を除く): 32002040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 640039, 1280078, 2560156, 3200195, 5120312, 6400390, 12800780, 25601560]

約数ペア:

[(1, 25601560), (2, 12800780), (4, 6400390), (5, 5120312), (8, 3200195), (10, 2560156), (20, 1280078), (40, 640039)]