18090520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{64609}}^1$

素因数の和:64627

約数の個数: 32

約数和(自身を含む): 46519200

約数和(自身を除く): 28428680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 64609, 129218, 258436, 323045, 452263, 516872, 646090, 904526, 1292180, 1809052, 2261315, 2584360, 3618104, 4522630, 9045260, 18090520]

約数ペア:

[(1, 18090520), (2, 9045260), (4, 4522630), (5, 3618104), (7, 2584360), (8, 2261315), (10, 1809052), (14, 1292180), (20, 904526), (28, 646090), (35, 516872), (40, 452263), (56, 323045), (70, 258436), (140, 129218), (280, 64609)]