1997412208

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{81647}}^1$

素因数の和:81805

約数の個数: 40

約数和(自身を含む): 4252227840

約数和(自身を除く): 2254815632

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 139, 176, 278, 556, 1112, 1529, 2224, 3058, 6116, 12232, 24464, 81647, 163294, 326588, 653176, 898117, 1306352, 1796234, 3592468, 7184936, 11348933, 14369872, 22697866, 45395732, 90791464, 124838263, 181582928, 249676526, 499353052, 998706104, 1997412208]

約数ペア:

[(1, 1997412208), (2, 998706104), (4, 499353052), (8, 249676526), (11, 181582928), (16, 124838263), (22, 90791464), (44, 45395732), (88, 22697866), (139, 14369872), (176, 11348933), (278, 7184936), (556, 3592468), (1112, 1796234), (1529, 1306352), (2224, 898117), (3058, 653176), (6116, 326588), (12232, 163294), (24464, 81647)]