18312880

素因数分解:

$2^4\times 5^1\times {\mathrm{228911}}^1$

素因数の和:228924

約数の個数: 20

約数和(自身を含む): 42577632

約数和(自身を除く): 24264752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 228911, 457822, 915644, 1144555, 1831288, 2289110, 3662576, 4578220, 9156440, 18312880]

約数ペア:

[(1, 18312880), (2, 9156440), (4, 4578220), (5, 3662576), (8, 2289110), (10, 1831288), (16, 1144555), (20, 915644), (40, 457822), (80, 228911)]