1287942728

素因数分解:

$2^3\times {\mathrm{947}}^1\times {\mathrm{170003}}^1$

素因数の和:170956

約数の個数: 16

約数和(自身を含む): 2417456880

約数和(自身を除く): 1129514152

約数列:

[1, 2, 4, 8, 947, 1894, 3788, 7576, 170003, 340006, 680012, 1360024, 160992841, 321985682, 643971364, 1287942728]

約数ペア:

[(1, 1287942728), (2, 643971364), (4, 321985682), (8, 160992841), (947, 1360024), (1894, 680012), (3788, 340006), (7576, 170003)]