2780495627

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{3607}}^1$

素因数の和:3867

約数の個数: 32

約数和(自身を含む): 3520484352

約数和(自身を除く): 739988725

約数列:

[1, 7, 13, 43, 91, 197, 301, 559, 1379, 2561, 3607, 3913, 8471, 17927, 25249, 46891, 59297, 110123, 155101, 328237, 710579, 770861, 1085707, 2016313, 4974053, 9237527, 14114191, 30554897, 64662689, 213884279, 397213661, 2780495627]

約数ペア:

[(1, 2780495627), (7, 397213661), (13, 213884279), (43, 64662689), (91, 30554897), (197, 14114191), (301, 9237527), (559, 4974053), (1379, 2016313), (2561, 1085707), (3607, 770861), (3913, 710579), (8471, 328237), (17927, 155101), (25249, 110123), (46891, 59297)]