20900680

素因数分解:

$2^3\times 5^1\times {\mathrm{522517}}^1$

素因数の和:522528

約数の個数: 16

約数和(自身を含む): 47026620

約数和(自身を除く): 26125940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 522517, 1045034, 2090068, 2612585, 4180136, 5225170, 10450340, 20900680]

約数ペア:

[(1, 20900680), (2, 10450340), (4, 5225170), (5, 4180136), (8, 2612585), (10, 2090068), (20, 1045034), (40, 522517)]