256225865

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{4483}}^1$

素因数の和:4589

約数の個数: 32

約数和(自身を含む): 371920896

約数和(自身を除く): 115695031

約数列:

[1, 5, 7, 23, 35, 71, 115, 161, 355, 497, 805, 1633, 2485, 4483, 8165, 11431, 22415, 31381, 57155, 103109, 156905, 318293, 515545, 721763, 1591465, 2228051, 3608815, 7320739, 11140255, 36603695, 51245173, 256225865]

約数ペア:

[(1, 256225865), (5, 51245173), (7, 36603695), (23, 11140255), (35, 7320739), (71, 3608815), (115, 2228051), (161, 1591465), (355, 721763), (497, 515545), (805, 318293), (1633, 156905), (2485, 103109), (4483, 57155), (8165, 31381), (11431, 22415)]