257525290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{337}}^1\times {\mathrm{6947}}^1$

素因数の和:7302

約数の個数: 32

約数和(自身を含む): 507259584

約数和(自身を除く): 249734294

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 337, 674, 1685, 3370, 3707, 6947, 7414, 13894, 18535, 34735, 37070, 69470, 76417, 152834, 382085, 764170, 2341139, 4682278, 11705695, 23411390, 25752529, 51505058, 128762645, 257525290]

約数ペア:

[(1, 257525290), (2, 128762645), (5, 51505058), (10, 25752529), (11, 23411390), (22, 11705695), (55, 4682278), (110, 2341139), (337, 764170), (674, 382085), (1685, 152834), (3370, 76417), (3707, 69470), (6947, 37070), (7414, 34735), (13894, 18535)]