12788240

素因数分解:

$2^4\times 5^1\times {\mathrm{159853}}^1$

素因数の和:159866

約数の個数: 20

約数和(自身を含む): 29732844

約数和(自身を除く): 16944604

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 159853, 319706, 639412, 799265, 1278824, 1598530, 2557648, 3197060, 6394120, 12788240]

約数ペア:

[(1, 12788240), (2, 6394120), (4, 3197060), (5, 2557648), (8, 1598530), (10, 1278824), (16, 799265), (20, 639412), (40, 319706), (80, 159853)]