12188215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 16934400

約数和(自身を除く): 4746185

約数列:

[1, 5, 13, 19, 65, 71, 95, 139, 247, 355, 695, 923, 1235, 1349, 1807, 2641, 4615, 6745, 9035, 9869, 13205, 17537, 34333, 49345, 87685, 128297, 171665, 187511, 641485, 937555, 2437643, 12188215]

約数ペア:

[(1, 12188215), (5, 2437643), (13, 937555), (19, 641485), (65, 187511), (71, 171665), (95, 128297), (139, 87685), (247, 49345), (355, 34333), (695, 17537), (923, 13205), (1235, 9869), (1349, 9035), (1807, 6745), (2641, 4615)]