778894004

素因数分解:

$2^2\times 7^4\times {\mathrm{81101}}^1$

素因数の和:81133

約数の個数: 30

約数和(自身を含む): 1590166914

約数和(自身を除く): 811272910

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 2401, 4802, 9604, 81101, 162202, 324404, 567707, 1135414, 2270828, 3973949, 7947898, 15895796, 27817643, 55635286, 111270572, 194723501, 389447002, 778894004]

約数ペア:

[(1, 778894004), (2, 389447002), (4, 194723501), (7, 111270572), (14, 55635286), (28, 27817643), (49, 15895796), (98, 7947898), (196, 3973949), (343, 2270828), (686, 1135414), (1372, 567707), (2401, 324404), (4802, 162202), (9604, 81101)]