28238128

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{12697}}^1$

素因数の和:12844

約数の個数: 20

約数和(自身を含む): 55109320

約数和(自身を除く): 26871192

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 12697, 25394, 50788, 101576, 203152, 1764883, 3529766, 7059532, 14119064, 28238128]

約数ペア:

[(1, 28238128), (2, 14119064), (4, 7059532), (8, 3529766), (16, 1764883), (139, 203152), (278, 101576), (556, 50788), (1112, 25394), (2224, 12697)]