79808840

素因数分解:

$2^3\times 5^1\times {\mathrm{1995221}}^1$

素因数の和:1995232

約数の個数: 16

約数和(自身を含む): 179569980

約数和(自身を除く): 99761140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1995221, 3990442, 7980884, 9976105, 15961768, 19952210, 39904420, 79808840]

約数ペア:

[(1, 79808840), (2, 39904420), (4, 19952210), (5, 15961768), (8, 9976105), (10, 7980884), (20, 3990442), (40, 1995221)]