20278756

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{4451}}^1$

素因数の和:4539

約数の個数: 24

約数和(自身を含む): 38144736

約数和(自身を除く): 17865980

約数列:

[1, 2, 4, 17, 34, 67, 68, 134, 268, 1139, 2278, 4451, 4556, 8902, 17804, 75667, 151334, 298217, 302668, 596434, 1192868, 5069689, 10139378, 20278756]

約数ペア:

[(1, 20278756), (2, 10139378), (4, 5069689), (17, 1192868), (34, 596434), (67, 302668), (68, 298217), (134, 151334), (268, 75667), (1139, 17804), (2278, 8902), (4451, 4556)]