78850040

素因数分解:

$2^3\times 5^1\times {\mathrm{1971251}}^1$

素因数の和:1971262

約数の個数: 16

約数和(自身を含む): 177412680

約数和(自身を除く): 98562640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1971251, 3942502, 7885004, 9856255, 15770008, 19712510, 39425020, 78850040]

約数ペア:

[(1, 78850040), (2, 39425020), (4, 19712510), (5, 15770008), (8, 9856255), (10, 7885004), (20, 3942502), (40, 1971251)]