1388403772

素因数分解:

$2^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{490949}}^1$

素因数の和:491061

約数の個数: 24

約数和(自身を含む): 2804306400

約数和(自身を除く): 1415902628

約数列:

[1, 2, 4, 7, 14, 28, 101, 202, 404, 707, 1414, 2828, 490949, 981898, 1963796, 3436643, 6873286, 13746572, 49585849, 99171698, 198343396, 347100943, 694201886, 1388403772]

約数ペア:

[(1, 1388403772), (2, 694201886), (4, 347100943), (7, 198343396), (14, 99171698), (28, 49585849), (101, 13746572), (202, 6873286), (404, 3436643), (707, 1963796), (1414, 981898), (2828, 490949)]