138780916

素因数分解:

$2^2\times {\mathrm{661}}^1\times {\mathrm{52489}}^1$

素因数の和:53154

約数の個数: 12

約数和(自身を含む): 243238660

約数和(自身を除く): 104457744

約数列:

[1, 2, 4, 661, 1322, 2644, 52489, 104978, 209956, 34695229, 69390458, 138780916]

約数ペア:

[(1, 138780916), (2, 69390458), (4, 34695229), (661, 209956), (1322, 104978), (2644, 52489)]