840097972

素因数分解:

$2^2\times 7^1\times {\mathrm{4001}}^1\times {\mathrm{7499}}^1$

素因数の和:11511

約数の個数: 24

約数和(自身を含む): 1680840000

約数和(自身を除く): 840742028

約数列:

[1, 2, 4, 7, 14, 28, 4001, 7499, 8002, 14998, 16004, 28007, 29996, 52493, 56014, 104986, 112028, 209972, 30003499, 60006998, 120013996, 210024493, 420048986, 840097972]

約数ペア:

[(1, 840097972), (2, 420048986), (4, 210024493), (7, 120013996), (14, 60006998), (28, 30003499), (4001, 209972), (7499, 112028), (8002, 104986), (14998, 56014), (16004, 52493), (28007, 29996)]