161956040

素因数分解:

$2^3\times 5^1\times {\mathrm{4048901}}^1$

素因数の和:4048912

約数の個数: 16

約数和(自身を含む): 364401180

約数和(自身を除く): 202445140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4048901, 8097802, 16195604, 20244505, 32391208, 40489010, 80978020, 161956040]

約数ペア:

[(1, 161956040), (2, 80978020), (4, 40489010), (5, 32391208), (8, 20244505), (10, 16195604), (20, 8097802), (40, 4048901)]