51640785

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2309}}^1$

素因数の和:2398

約数の個数: 48

約数和(自身を含む): 103783680

約数和(自身を除く): 52142895

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 71, 105, 213, 315, 355, 497, 639, 1065, 1491, 2309, 2485, 3195, 4473, 6927, 7455, 11545, 16163, 20781, 22365, 34635, 48489, 80815, 103905, 145467, 163939, 242445, 491817, 727335, 819695, 1147573, 1475451, 2459085, 3442719, 5737865, 7377255, 10328157, 17213595, 51640785]

約数ペア:

[(1, 51640785), (3, 17213595), (5, 10328157), (7, 7377255), (9, 5737865), (15, 3442719), (21, 2459085), (35, 1475451), (45, 1147573), (63, 819695), (71, 727335), (105, 491817), (213, 242445), (315, 163939), (355, 145467), (497, 103905), (639, 80815), (1065, 48489), (1491, 34635), (2309, 22365), (2485, 20781), (3195, 16163), (4473, 11545), (6927, 7455)]