639320689

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{10463}}^1$

素因数の和:10549

約数の個数: 24

約数和(自身を含む): 787311360

約数和(自身を除く): 147990671

約数列:

[1, 7, 29, 43, 49, 203, 301, 1247, 1421, 2107, 8729, 10463, 61103, 73241, 303427, 449909, 512687, 2123989, 3149363, 13047361, 14867923, 22045541, 91331527, 639320689]

約数ペア:

[(1, 639320689), (7, 91331527), (29, 22045541), (43, 14867923), (49, 13047361), (203, 3149363), (301, 2123989), (1247, 512687), (1421, 449909), (2107, 303427), (8729, 73241), (10463, 61103)]