320420248

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{4909}}^1$

素因数の和:5155

約数の個数: 32

約数和(自身を含む): 618660000

約数和(自身を除く): 298239752

約数列:

[1, 2, 4, 8, 41, 82, 164, 199, 328, 398, 796, 1592, 4909, 8159, 9818, 16318, 19636, 32636, 39272, 65272, 201269, 402538, 805076, 976891, 1610152, 1953782, 3907564, 7815128, 40052531, 80105062, 160210124, 320420248]

約数ペア:

[(1, 320420248), (2, 160210124), (4, 80105062), (8, 40052531), (41, 7815128), (82, 3907564), (164, 1953782), (199, 1610152), (328, 976891), (398, 805076), (796, 402538), (1592, 201269), (4909, 65272), (8159, 39272), (9818, 32636), (16318, 19636)]