78016040

素因数分解:

$2^3\times 5^1\times {\mathrm{1950401}}^1$

素因数の和:1950412

約数の個数: 16

約数和(自身を含む): 175536180

約数和(自身を除く): 97520140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1950401, 3900802, 7801604, 9752005, 15603208, 19504010, 39008020, 78016040]

約数ペア:

[(1, 78016040), (2, 39008020), (4, 19504010), (5, 15603208), (8, 9752005), (10, 7801604), (20, 3900802), (40, 1950401)]