19728780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{328813}}^1$

素因数の和:328825

約数の個数: 24

約数和(自身を含む): 55240752

約数和(自身を除く): 35511972

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 328813, 657626, 986439, 1315252, 1644065, 1972878, 3288130, 3945756, 4932195, 6576260, 9864390, 19728780]

約数ペア:

[(1, 19728780), (2, 9864390), (3, 6576260), (4, 4932195), (5, 3945756), (6, 3288130), (10, 1972878), (12, 1644065), (15, 1315252), (20, 986439), (30, 657626), (60, 328813)]