4047580

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{461}}^1$

素因数の和:909

約数の個数: 24

約数和(自身を含む): 8537760

約数和(自身を除く): 4490180

約数列:

[1, 2, 4, 5, 10, 20, 439, 461, 878, 922, 1756, 1844, 2195, 2305, 4390, 4610, 8780, 9220, 202379, 404758, 809516, 1011895, 2023790, 4047580]

約数ペア:

[(1, 4047580), (2, 2023790), (4, 1011895), (5, 809516), (10, 404758), (20, 202379), (439, 9220), (461, 8780), (878, 4610), (922, 4390), (1756, 2305), (1844, 2195)]