639366812

素因数分解:

$2^2\times 7^1\times {\mathrm{1933}}^1\times {\mathrm{11813}}^1$

素因数の和:13757

約数の個数: 24

約数和(自身を含む): 1279503456

約数和(自身を除く): 640136644

約数列:

[1, 2, 4, 7, 14, 28, 1933, 3866, 7732, 11813, 13531, 23626, 27062, 47252, 54124, 82691, 165382, 330764, 22834529, 45669058, 91338116, 159841703, 319683406, 639366812]

約数ペア:

[(1, 639366812), (2, 319683406), (4, 159841703), (7, 91338116), (14, 45669058), (28, 22834529), (1933, 330764), (3866, 165382), (7732, 82691), (11813, 54124), (13531, 47252), (23626, 27062)]