12780388

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{499}}^1$

素因数の和:859

約数の個数: 24

約数和(自身を含む): 23660000

約数和(自身を除く): 10879612

約数列:

[1, 2, 4, 19, 38, 76, 337, 499, 674, 998, 1348, 1996, 6403, 9481, 12806, 18962, 25612, 37924, 168163, 336326, 672652, 3195097, 6390194, 12780388]

約数ペア:

[(1, 12780388), (2, 6390194), (4, 3195097), (19, 672652), (38, 336326), (76, 168163), (337, 37924), (499, 25612), (674, 18962), (998, 12806), (1348, 9481), (1996, 6403)]