1278889136

素因数分解:

$2^4\times 7^1\times {\mathrm{11418653}}^1$

素因数の和:11418668

約数の個数: 20

約数和(自身を含む): 2831826192

約数和(自身を除く): 1552937056

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 11418653, 22837306, 45674612, 79930571, 91349224, 159861142, 182698448, 319722284, 639444568, 1278889136]

約数ペア:

[(1, 1278889136), (2, 639444568), (4, 319722284), (7, 182698448), (8, 159861142), (14, 91349224), (16, 79930571), (28, 45674612), (56, 22837306), (112, 11418653)]