78891868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{13687}}^1$

素因数の和:13833

約数の個数: 24

約数和(自身を含む): 151772544

約数和(自身を除く): 72880676

約数列:

[1, 2, 4, 11, 22, 44, 131, 262, 524, 1441, 2882, 5764, 13687, 27374, 54748, 150557, 301114, 602228, 1792997, 3585994, 7171988, 19722967, 39445934, 78891868]

約数ペア:

[(1, 78891868), (2, 39445934), (4, 19722967), (11, 7171988), (22, 3585994), (44, 1792997), (131, 602228), (262, 301114), (524, 150557), (1441, 54748), (2882, 27374), (5764, 13687)]