1559440

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{193}}^1$

素因数の和:307

約数の個数: 40

約数和(自身を含む): 3680568

約数和(自身を除く): 2121128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 193, 202, 386, 404, 505, 772, 808, 965, 1010, 1544, 1616, 1930, 2020, 3088, 3860, 4040, 7720, 8080, 15440, 19493, 38986, 77972, 97465, 155944, 194930, 311888, 389860, 779720, 1559440]

約数ペア:

[(1, 1559440), (2, 779720), (4, 389860), (5, 311888), (8, 194930), (10, 155944), (16, 97465), (20, 77972), (40, 38986), (80, 19493), (101, 15440), (193, 8080), (202, 7720), (386, 4040), (404, 3860), (505, 3088), (772, 2020), (808, 1930), (965, 1616), (1010, 1544)]