257441470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2687}}^1$

素因数の和:2785

約数の個数: 64

約数和(自身を含む): 552738816

約数和(自身を除く): 295297346

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 67, 110, 130, 134, 143, 286, 335, 670, 715, 737, 871, 1430, 1474, 1742, 2687, 3685, 4355, 5374, 7370, 8710, 9581, 13435, 19162, 26870, 29557, 34931, 47905, 59114, 69862, 95810, 147785, 174655, 180029, 295570, 349310, 360058, 384241, 768482, 900145, 1800290, 1921205, 1980319, 2340377, 3842410, 3960638, 4680754, 9901595, 11701885, 19803190, 23403770, 25744147, 51488294, 128720735, 257441470]

約数ペア:

[(1, 257441470), (2, 128720735), (5, 51488294), (10, 25744147), (11, 23403770), (13, 19803190), (22, 11701885), (26, 9901595), (55, 4680754), (65, 3960638), (67, 3842410), (110, 2340377), (130, 1980319), (134, 1921205), (143, 1800290), (286, 900145), (335, 768482), (670, 384241), (715, 360058), (737, 349310), (871, 295570), (1430, 180029), (1474, 174655), (1742, 147785), (2687, 95810), (3685, 69862), (4355, 59114), (5374, 47905), (7370, 34931), (8710, 29557), (9581, 26870), (13435, 19162)]