78982040

素因数分解:

$2^3\times 5^1\times {\mathrm{1974551}}^1$

素因数の和:1974562

約数の個数: 16

約数和(自身を含む): 177709680

約数和(自身を除く): 98727640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1974551, 3949102, 7898204, 9872755, 15796408, 19745510, 39491020, 78982040]

約数ペア:

[(1, 78982040), (2, 39491020), (4, 19745510), (5, 15796408), (8, 9872755), (10, 7898204), (20, 3949102), (40, 1974551)]