39255760

素因数分解:

$2^4\times 5^1\times {\mathrm{490697}}^1$

素因数の和:490710

約数の個数: 20

約数和(自身を含む): 91269828

約数和(自身を除く): 52014068

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 490697, 981394, 1962788, 2453485, 3925576, 4906970, 7851152, 9813940, 19627880, 39255760]

約数ペア:

[(1, 39255760), (2, 19627880), (4, 9813940), (5, 7851152), (8, 4906970), (10, 3925576), (16, 2453485), (20, 1962788), (40, 981394), (80, 490697)]