678876

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 1787520

約数和(自身を除く): 1108644

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 37, 44, 66, 74, 111, 132, 139, 148, 222, 278, 407, 417, 444, 556, 814, 834, 1221, 1529, 1628, 1668, 2442, 3058, 4587, 4884, 5143, 6116, 9174, 10286, 15429, 18348, 20572, 30858, 56573, 61716, 113146, 169719, 226292, 339438, 678876]

約数ペア:

[(1, 678876), (2, 339438), (3, 226292), (4, 169719), (6, 113146), (11, 61716), (12, 56573), (22, 30858), (33, 20572), (37, 18348), (44, 15429), (66, 10286), (74, 9174), (111, 6116), (132, 5143), (139, 4884), (148, 4587), (222, 3058), (278, 2442), (407, 1668), (417, 1628), (444, 1529), (556, 1221), (814, 834)]