78262640

素因数分解:

$2^4\times 5^1\times {\mathrm{978283}}^1$

素因数の和:978296

約数の個数: 20

約数和(自身を含む): 181960824

約数和(自身を除く): 103698184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 978283, 1956566, 3913132, 4891415, 7826264, 9782830, 15652528, 19565660, 39131320, 78262640]

約数ペア:

[(1, 78262640), (2, 39131320), (4, 19565660), (5, 15652528), (8, 9782830), (10, 7826264), (16, 4891415), (20, 3913132), (40, 1956566), (80, 978283)]