18720760

素因数分解:

$2^3\times 5^1\times {\mathrm{468019}}^1$

素因数の和:468030

約数の個数: 16

約数和(自身を含む): 42121800

約数和(自身を除く): 23401040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 468019, 936038, 1872076, 2340095, 3744152, 4680190, 9360380, 18720760]

約数ペア:

[(1, 18720760), (2, 9360380), (4, 4680190), (5, 3744152), (8, 2340095), (10, 1872076), (20, 936038), (40, 468019)]