389860

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{193}}^1$

素因数の和:303

約数の個数: 24

約数和(自身を含む): 831096

約数和(自身を除く): 441236

約数列:

[1, 2, 4, 5, 10, 20, 101, 193, 202, 386, 404, 505, 772, 965, 1010, 1930, 2020, 3860, 19493, 38986, 77972, 97465, 194930, 389860]

約数ペア:

[(1, 389860), (2, 194930), (4, 97465), (5, 77972), (10, 38986), (20, 19493), (101, 3860), (193, 2020), (202, 1930), (386, 1010), (404, 965), (505, 772)]