388085684

素因数分解:

$2^2\times 7^2\times {\mathrm{1980029}}^1$

素因数の和:1980047

約数の個数: 18

約数和(自身を含む): 790031970

約数和(自身を除く): 401946286

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 1980029, 3960058, 7920116, 13860203, 27720406, 55440812, 97021421, 194042842, 388085684]

約数ペア:

[(1, 388085684), (2, 194042842), (4, 97021421), (7, 55440812), (14, 27720406), (28, 13860203), (49, 7920116), (98, 3960058), (196, 1980029)]