261405452

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{2729}}^1$

素因数の和:3062

約数の個数: 48

約数和(自身を含む): 572382720

約数和(自身を除く): 310977268

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 311, 622, 1244, 2177, 2729, 3421, 4354, 5458, 6842, 8708, 10916, 13684, 19103, 23947, 30019, 38206, 47894, 60038, 76412, 95788, 120076, 210133, 420266, 840532, 848719, 1697438, 3394876, 5941033, 9335909, 11882066, 18671818, 23764132, 37343636, 65351363, 130702726, 261405452]

約数ペア:

[(1, 261405452), (2, 130702726), (4, 65351363), (7, 37343636), (11, 23764132), (14, 18671818), (22, 11882066), (28, 9335909), (44, 5941033), (77, 3394876), (154, 1697438), (308, 848719), (311, 840532), (622, 420266), (1244, 210133), (2177, 120076), (2729, 95788), (3421, 76412), (4354, 60038), (5458, 47894), (6842, 38206), (8708, 30019), (10916, 23947), (13684, 19103)]