39142640

素因数分解:

$2^4\times 5^1\times {\mathrm{489283}}^1$

素因数の和:489296

約数の個数: 20

約数和(自身を含む): 91006824

約数和(自身を除く): 51864184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 489283, 978566, 1957132, 2446415, 3914264, 4892830, 7828528, 9785660, 19571320, 39142640]

約数ペア:

[(1, 39142640), (2, 19571320), (4, 9785660), (5, 7828528), (8, 4892830), (10, 3914264), (16, 2446415), (20, 1957132), (40, 978566), (80, 489283)]