80453708

素因数分解:

$2^2\times {\mathrm{157}}^1\times {\mathrm{128111}}^1$

素因数の和:128272

約数の個数: 12

約数和(自身を含む): 141691872

約数和(自身を除く): 61238164

約数列:

[1, 2, 4, 157, 314, 628, 128111, 256222, 512444, 20113427, 40226854, 80453708]

約数ペア:

[(1, 80453708), (2, 40226854), (4, 20113427), (157, 512444), (314, 256222), (628, 128111)]