78880581

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{293}}^1$

素因数の和:387

約数の個数: 48

約数和(自身を含む): 129124800

約数和(自身を除く): 50244219

約数列:

[1, 3, 9, 13, 27, 39, 59, 117, 169, 177, 293, 351, 507, 531, 767, 879, 1521, 1593, 2301, 2637, 3809, 4563, 6903, 7911, 9971, 11427, 17287, 20709, 29913, 34281, 49517, 51861, 89739, 102843, 148551, 155583, 224731, 269217, 445653, 466749, 674193, 1336959, 2022579, 2921503, 6067737, 8764509, 26293527, 78880581]

約数ペア:

[(1, 78880581), (3, 26293527), (9, 8764509), (13, 6067737), (27, 2921503), (39, 2022579), (59, 1336959), (117, 674193), (169, 466749), (177, 445653), (293, 269217), (351, 224731), (507, 155583), (531, 148551), (767, 102843), (879, 89739), (1521, 51861), (1593, 49517), (2301, 34281), (2637, 29913), (3809, 20709), (4563, 17287), (6903, 11427), (7911, 9971)]