20081560

素因数分解:

$2^3\times 5^1\times {\mathrm{502039}}^1$

素因数の和:502050

約数の個数: 16

約数和(自身を含む): 45183600

約数和(自身を除く): 25102040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 502039, 1004078, 2008156, 2510195, 4016312, 5020390, 10040780, 20081560]

約数ペア:

[(1, 20081560), (2, 10040780), (4, 5020390), (5, 4016312), (8, 2510195), (10, 2008156), (20, 1004078), (40, 502039)]