638159612

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{83137}}^1$

素因数の和:83261

約数の個数: 24

約数和(自身を含む): 1187210640

約数和(自身を除く): 549051028

約数列:

[1, 2, 4, 19, 38, 76, 101, 202, 404, 1919, 3838, 7676, 83137, 166274, 332548, 1579603, 3159206, 6318412, 8396837, 16793674, 33587348, 159539903, 319079806, 638159612]

約数ペア:

[(1, 638159612), (2, 319079806), (4, 159539903), (19, 33587348), (38, 16793674), (76, 8396837), (101, 6318412), (202, 3159206), (404, 1579603), (1919, 332548), (3838, 166274), (7676, 83137)]