20814100

素因数分解:

$2^2\times 5^2\times {\mathrm{208141}}^1$

素因数の和:208155

約数の個数: 18

約数和(自身を含む): 45166814

約数和(自身を除く): 24352714

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 208141, 416282, 832564, 1040705, 2081410, 4162820, 5203525, 10407050, 20814100]

約数ペア:

[(1, 20814100), (2, 10407050), (4, 5203525), (5, 4162820), (10, 2081410), (20, 1040705), (25, 832564), (50, 416282), (100, 208141)]