779720

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{193}}^1$

素因数の和:305

約数の個数: 32

約数和(自身を含む): 1780920

約数和(自身を除く): 1001200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 193, 202, 386, 404, 505, 772, 808, 965, 1010, 1544, 1930, 2020, 3860, 4040, 7720, 19493, 38986, 77972, 97465, 155944, 194930, 389860, 779720]

約数ペア:

[(1, 779720), (2, 389860), (4, 194930), (5, 155944), (8, 97465), (10, 77972), (20, 38986), (40, 19493), (101, 7720), (193, 4040), (202, 3860), (386, 2020), (404, 1930), (505, 1544), (772, 1010), (808, 965)]