20922820

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{3889}}^1$

素因数の和:4167

約数の個数: 24

約数和(自身を含む): 44112600

約数和(自身を除く): 23189780

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 3889, 5380, 7778, 15556, 19445, 38890, 77780, 1046141, 2092282, 4184564, 5230705, 10461410, 20922820]

約数ペア:

[(1, 20922820), (2, 10461410), (4, 5230705), (5, 4184564), (10, 2092282), (20, 1046141), (269, 77780), (538, 38890), (1076, 19445), (1345, 15556), (2690, 7778), (3889, 5380)]