19080920

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4723}}^1$

素因数の和:4835

約数の個数: 32

約数和(自身を含む): 43366320

約数和(自身を除く): 24285400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4723, 9446, 18892, 23615, 37784, 47230, 94460, 188920, 477023, 954046, 1908092, 2385115, 3816184, 4770230, 9540460, 19080920]

約数ペア:

[(1, 19080920), (2, 9540460), (4, 4770230), (5, 3816184), (8, 2385115), (10, 1908092), (20, 954046), (40, 477023), (101, 188920), (202, 94460), (404, 47230), (505, 37784), (808, 23615), (1010, 18892), (2020, 9446), (4040, 4723)]