20160820208

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{647}}^1\times {\mathrm{14011}}^1$

素因数の和:14805

約数の個数: 40

約数和(自身を含む): 39406227840

約数和(自身を除く): 19245407632

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 647, 1112, 1294, 2224, 2588, 5176, 10352, 14011, 28022, 56044, 89933, 112088, 179866, 224176, 359732, 719464, 1438928, 1947529, 3895058, 7790116, 9065117, 15580232, 18130234, 31160464, 36260468, 72520936, 145041872, 1260051263, 2520102526, 5040205052, 10080410104, 20160820208]

約数ペア:

[(1, 20160820208), (2, 10080410104), (4, 5040205052), (8, 2520102526), (16, 1260051263), (139, 145041872), (278, 72520936), (556, 36260468), (647, 31160464), (1112, 18130234), (1294, 15580232), (2224, 9065117), (2588, 7790116), (5176, 3895058), (10352, 1947529), (14011, 1438928), (28022, 719464), (56044, 359732), (89933, 224176), (112088, 179866)]