199987199995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{191375311}}^1$

素因数の和:191375346

約数の個数: 16

約数和(自身を含む): 275580449280

約数和(自身を除く): 75593249285

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 191375311, 956876555, 2105128421, 3636130909, 10525642105, 18180654545, 39997439999, 199987199995]

約数ペア:

[(1, 199987199995), (5, 39997439999), (11, 18180654545), (19, 10525642105), (55, 3636130909), (95, 2105128421), (209, 956876555), (1045, 191375311)]