79555880

素因数分解:

$2^3\times 5^1\times {\mathrm{1988897}}^1$

素因数の和:1988908

約数の個数: 16

約数和(自身を含む): 179000820

約数和(自身を除く): 99444940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1988897, 3977794, 7955588, 9944485, 15911176, 19888970, 39777940, 79555880]

約数ペア:

[(1, 79555880), (2, 39777940), (4, 19888970), (5, 15911176), (8, 9944485), (10, 7955588), (20, 3977794), (40, 1988897)]