2137820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{769}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 4527600

約数和(自身を除く): 2389780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 769, 1390, 1538, 2780, 3076, 3845, 7690, 15380, 106891, 213782, 427564, 534455, 1068910, 2137820]

約数ペア:

[(1, 2137820), (2, 1068910), (4, 534455), (5, 427564), (10, 213782), (20, 106891), (139, 15380), (278, 7690), (556, 3845), (695, 3076), (769, 2780), (1390, 1538)]