39990742

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{257}}^1\times {\mathrm{643}}^1$

素因数の和:924

約数の個数: 24

約数和(自身を含む): 66294648

約数和(自身を除く): 26303906

約数列:

[1, 2, 11, 22, 121, 242, 257, 514, 643, 1286, 2827, 5654, 7073, 14146, 31097, 62194, 77803, 155606, 165251, 330502, 1817761, 3635522, 19995371, 39990742]

約数ペア:

[(1, 39990742), (2, 19995371), (11, 3635522), (22, 1817761), (121, 330502), (242, 165251), (257, 155606), (514, 77803), (643, 62194), (1286, 31097), (2827, 14146), (5654, 7073)]