28242640

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{6661}}^1$

素因数の和:6727

約数の個数: 40

約数和(自身を含む): 66913128

約数和(自身を除く): 38670488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 6661, 13322, 26644, 33305, 53288, 66610, 106576, 133220, 266440, 353033, 532880, 706066, 1412132, 1765165, 2824264, 3530330, 5648528, 7060660, 14121320, 28242640]

約数ペア:

[(1, 28242640), (2, 14121320), (4, 7060660), (5, 5648528), (8, 3530330), (10, 2824264), (16, 1765165), (20, 1412132), (40, 706066), (53, 532880), (80, 353033), (106, 266440), (212, 133220), (265, 106576), (424, 66610), (530, 53288), (848, 33305), (1060, 26644), (2120, 13322), (4240, 6661)]