20009960

素因数分解:

$2^3\times 5^1\times {\mathrm{500249}}^1$

素因数の和:500260

約数の個数: 16

約数和(自身を含む): 45022500

約数和(自身を除く): 25012540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 500249, 1000498, 2000996, 2501245, 4001992, 5002490, 10004980, 20009960]

約数ペア:

[(1, 20009960), (2, 10004980), (4, 5002490), (5, 4001992), (8, 2501245), (10, 2000996), (20, 1000498), (40, 500249)]