20780904

素因数分解:

$2^3\times 3^1\times {\mathrm{865871}}^1$

素因数の和:865880

約数の個数: 16

約数和(自身を含む): 51952320

約数和(自身を除く): 31171416

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 865871, 1731742, 2597613, 3463484, 5195226, 6926968, 10390452, 20780904]

約数ペア:

[(1, 20780904), (2, 10390452), (3, 6926968), (4, 5195226), (6, 3463484), (8, 2597613), (12, 1731742), (24, 865871)]