628991638

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{353}}^1$

素因数の和:613

約数の個数: 48

約数和(自身を含む): 1073469600

約数和(自身を除く): 444477962

約数列:

[1, 2, 11, 22, 37, 74, 121, 199, 242, 353, 398, 407, 706, 814, 2189, 3883, 4378, 4477, 7363, 7766, 8954, 13061, 14726, 24079, 26122, 42713, 48158, 70247, 80993, 85426, 140494, 143671, 161986, 287342, 772717, 890923, 1545434, 1580381, 1781846, 2599139, 3160762, 5198278, 8499887, 16999774, 28590529, 57181058, 314495819, 628991638]

約数ペア:

[(1, 628991638), (2, 314495819), (11, 57181058), (22, 28590529), (37, 16999774), (74, 8499887), (121, 5198278), (199, 3160762), (242, 2599139), (353, 1781846), (398, 1580381), (407, 1545434), (706, 890923), (814, 772717), (2189, 287342), (3883, 161986), (4378, 143671), (4477, 140494), (7363, 85426), (7766, 80993), (8954, 70247), (13061, 48158), (14726, 42713), (24079, 26122)]