27981020

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{8087}}^1$

素因数の和:8269

約数の個数: 24

約数和(自身を含む): 59107104

約数和(自身を除く): 31126084

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 8087, 16174, 32348, 40435, 80870, 161740, 1399051, 2798102, 5596204, 6995255, 13990510, 27981020]

約数ペア:

[(1, 27981020), (2, 13990510), (4, 6995255), (5, 5596204), (10, 2798102), (20, 1399051), (173, 161740), (346, 80870), (692, 40435), (865, 32348), (1730, 16174), (3460, 8087)]