78886948

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{20269}}^1$

素因数の和:20419

約数の個数: 24

約数和(自身を含む): 158916800

約数和(自身を除く): 80029852

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 20269, 40538, 81076, 141883, 283766, 567532, 2817391, 5634782, 11269564, 19721737, 39443474, 78886948]

約数ペア:

[(1, 78886948), (2, 39443474), (4, 19721737), (7, 11269564), (14, 5634782), (28, 2817391), (139, 567532), (278, 283766), (556, 141883), (973, 81076), (1946, 40538), (3892, 20269)]