257101863

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 401863680

約数和(自身を除く): 144761817

約数列:

[1, 3, 17, 19, 37, 51, 57, 71, 101, 111, 213, 303, 323, 629, 703, 969, 1207, 1349, 1717, 1887, 1919, 2109, 2627, 3621, 3737, 4047, 5151, 5757, 7171, 7881, 11211, 11951, 21513, 22933, 32623, 35853, 44659, 49913, 63529, 68799, 71003, 97869, 121907, 133977, 136249, 149739, 190587, 213009, 265327, 365721, 408747, 795981, 848521, 1207051, 2316233, 2545563, 3621153, 4510559, 5041213, 6948699, 13531677, 15123639, 85700621, 257101863]

約数ペア:

[(1, 257101863), (3, 85700621), (17, 15123639), (19, 13531677), (37, 6948699), (51, 5041213), (57, 4510559), (71, 3621153), (101, 2545563), (111, 2316233), (213, 1207051), (303, 848521), (323, 795981), (629, 408747), (703, 365721), (969, 265327), (1207, 213009), (1349, 190587), (1717, 149739), (1887, 136249), (1919, 133977), (2109, 121907), (2627, 97869), (3621, 71003), (3737, 68799), (4047, 63529), (5151, 49913), (5757, 44659), (7171, 35853), (7881, 32623), (11211, 22933), (11951, 21513)]