78240915

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{42407}}^1$

素因数の和:42459

約数の個数: 24

約数和(自身を含む): 138928608

約数和(自身を除く): 60687693

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 42407, 127221, 212035, 381663, 636105, 1738687, 1908315, 5216061, 8693435, 15648183, 26080305, 78240915]

約数ペア:

[(1, 78240915), (3, 26080305), (5, 15648183), (9, 8693435), (15, 5216061), (41, 1908315), (45, 1738687), (123, 636105), (205, 381663), (369, 212035), (615, 127221), (1845, 42407)]