20778756

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{883}}^1$

素因数の和:980

約数の個数: 48

約数和(自身を含む): 50791104

約数和(自身を除く): 30012348

約数列:

[1, 2, 3, 4, 6, 12, 37, 53, 74, 106, 111, 148, 159, 212, 222, 318, 444, 636, 883, 1766, 1961, 2649, 3532, 3922, 5298, 5883, 7844, 10596, 11766, 23532, 32671, 46799, 65342, 93598, 98013, 130684, 140397, 187196, 196026, 280794, 392052, 561588, 1731563, 3463126, 5194689, 6926252, 10389378, 20778756]

約数ペア:

[(1, 20778756), (2, 10389378), (3, 6926252), (4, 5194689), (6, 3463126), (12, 1731563), (37, 561588), (53, 392052), (74, 280794), (106, 196026), (111, 187196), (148, 140397), (159, 130684), (212, 98013), (222, 93598), (318, 65342), (444, 46799), (636, 32671), (883, 23532), (1766, 11766), (1961, 10596), (2649, 7844), (3532, 5883), (3922, 5298)]