28705118

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{563}}^1$

素因数の和:668

約数の個数: 32

約数和(自身を含む): 48607776

約数和(自身を除く): 19902658

約数列:

[1, 2, 13, 26, 37, 53, 74, 106, 481, 563, 689, 962, 1126, 1378, 1961, 3922, 7319, 14638, 20831, 25493, 29839, 41662, 50986, 59678, 270803, 387907, 541606, 775814, 1104043, 2208086, 14352559, 28705118]

約数ペア:

[(1, 28705118), (2, 14352559), (13, 2208086), (26, 1104043), (37, 775814), (53, 541606), (74, 387907), (106, 270803), (481, 59678), (563, 50986), (689, 41662), (962, 29839), (1126, 25493), (1378, 20831), (1961, 14638), (3922, 7319)]