78571215

素因数分解:

$3^4\times 5^1\times {\mathrm{194003}}^1$

素因数の和:194020

約数の個数: 20

約数和(自身を含む): 140846904

約数和(自身を除く): 62275689

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 194003, 582009, 970015, 1746027, 2910045, 5238081, 8730135, 15714243, 26190405, 78571215]

約数ペア:

[(1, 78571215), (3, 26190405), (5, 15714243), (9, 8730135), (15, 5238081), (27, 2910045), (45, 1746027), (81, 970015), (135, 582009), (405, 194003)]