79507880

素因数分解:

$2^3\times 5^1\times {\mathrm{1987697}}^1$

素因数の和:1987708

約数の個数: 16

約数和(自身を含む): 178892820

約数和(自身を除く): 99384940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1987697, 3975394, 7950788, 9938485, 15901576, 19876970, 39753940, 79507880]

約数ペア:

[(1, 79507880), (2, 39753940), (4, 19876970), (5, 15901576), (8, 9938485), (10, 7950788), (20, 3975394), (40, 1987697)]