64981007

素因数分解:

$7^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:125

約数の個数: 48

約数和(自身を含む): 87840000

約数和(自身を除く): 22858993

約数列:

[1, 7, 13, 19, 49, 59, 91, 133, 169, 247, 343, 413, 637, 767, 931, 1121, 1183, 1729, 2891, 3211, 4459, 5369, 6517, 7847, 8281, 9971, 12103, 14573, 20237, 22477, 37583, 54929, 57967, 69797, 84721, 102011, 157339, 189449, 263081, 384503, 488579, 714077, 1101373, 1326143, 3420053, 4998539, 9283001, 64981007]

約数ペア:

[(1, 64981007), (7, 9283001), (13, 4998539), (19, 3420053), (49, 1326143), (59, 1101373), (91, 714077), (133, 488579), (169, 384503), (247, 263081), (343, 189449), (413, 157339), (637, 102011), (767, 84721), (931, 69797), (1121, 57967), (1183, 54929), (1729, 37583), (2891, 22477), (3211, 20237), (4459, 14573), (5369, 12103), (6517, 9971), (7847, 8281)]