20180774

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{12953}}^1$

素因数の和:13015

約数の個数: 16

約数和(自身を含む): 32644080

約数和(自身を除く): 12463306

約数列:

[1, 2, 19, 38, 41, 82, 779, 1558, 12953, 25906, 246107, 492214, 531073, 1062146, 10090387, 20180774]

約数ペア:

[(1, 20180774), (2, 10090387), (19, 1062146), (38, 531073), (41, 492214), (82, 246107), (779, 25906), (1558, 12953)]