20113880

素因数分解:

$2^3\times 5^1\times {\mathrm{502847}}^1$

素因数の和:502858

約数の個数: 16

約数和(自身を含む): 45256320

約数和(自身を除く): 25142440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 502847, 1005694, 2011388, 2514235, 4022776, 5028470, 10056940, 20113880]

約数ペア:

[(1, 20113880), (2, 10056940), (4, 5028470), (5, 4022776), (8, 2514235), (10, 2011388), (20, 1005694), (40, 502847)]