638963768

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{2311}}^1$

素因数の和:2460

約数の個数: 64

約数和(自身を含む): 1348358400

約数和(自身を除く): 709394632

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 107, 136, 152, 214, 323, 428, 646, 856, 1292, 1819, 2033, 2311, 2584, 3638, 4066, 4622, 7276, 8132, 9244, 14552, 16264, 18488, 34561, 39287, 43909, 69122, 78574, 87818, 138244, 157148, 175636, 247277, 276488, 314296, 351272, 494554, 746453, 989108, 1492906, 1978216, 2985812, 4203709, 4698263, 5971624, 8407418, 9396526, 16814836, 18793052, 33629672, 37586104, 79870471, 159740942, 319481884, 638963768]

約数ペア:

[(1, 638963768), (2, 319481884), (4, 159740942), (8, 79870471), (17, 37586104), (19, 33629672), (34, 18793052), (38, 16814836), (68, 9396526), (76, 8407418), (107, 5971624), (136, 4698263), (152, 4203709), (214, 2985812), (323, 1978216), (428, 1492906), (646, 989108), (856, 746453), (1292, 494554), (1819, 351272), (2033, 314296), (2311, 276488), (2584, 247277), (3638, 175636), (4066, 157148), (4622, 138244), (7276, 87818), (8132, 78574), (9244, 69122), (14552, 43909), (16264, 39287), (18488, 34561)]