28400086

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{499}}^1$

素因数の和:724

約数の個数: 32

約数和(自身を含む): 50400000

約数和(自身を除く): 21999914

約数列:

[1, 2, 11, 13, 22, 26, 143, 199, 286, 398, 499, 998, 2189, 2587, 4378, 5174, 5489, 6487, 10978, 12974, 28457, 56914, 71357, 99301, 142714, 198602, 1092311, 1290913, 2184622, 2581826, 14200043, 28400086]

約数ペア:

[(1, 28400086), (2, 14200043), (11, 2581826), (13, 2184622), (22, 1290913), (26, 1092311), (143, 198602), (199, 142714), (286, 99301), (398, 71357), (499, 56914), (998, 28457), (2189, 12974), (2587, 10978), (4378, 6487), (5174, 5489)]