285721345

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{2267}}^1$

素因数の和:2569

約数の個数: 32

約数和(自身を含む): 423698688

約数和(自身を除く): 137977343

約数列:

[1, 5, 7, 13, 35, 65, 91, 277, 455, 1385, 1939, 2267, 3601, 9695, 11335, 15869, 18005, 25207, 29471, 79345, 126035, 147355, 206297, 627959, 1031485, 3139795, 4395713, 8163467, 21978565, 40817335, 57144269, 285721345]

約数ペア:

[(1, 285721345), (5, 57144269), (7, 40817335), (13, 21978565), (35, 8163467), (65, 4395713), (91, 3139795), (277, 1031485), (455, 627959), (1385, 206297), (1939, 147355), (2267, 126035), (3601, 79345), (9695, 29471), (11335, 25207), (15869, 18005)]