778837988

素因数分解:

$2^2\times {\mathrm{1997}}^1\times {\mathrm{97501}}^1$

素因数の和:99502

約数の個数: 12

約数和(自身を含む): 1363662972

約数和(自身を除く): 584824984

約数列:

[1, 2, 4, 1997, 3994, 7988, 97501, 195002, 390004, 194709497, 389418994, 778837988]

約数ペア:

[(1, 778837988), (2, 389418994), (4, 194709497), (1997, 390004), (3994, 195002), (7988, 97501)]