66411784

素因数分解:

$2^3\times {\mathrm{409}}^1\times {\mathrm{20297}}^1$

素因数の和:20712

約数の個数: 16

約数和(自身を含む): 124832700

約数和(自身を除く): 58420916

約数列:

[1, 2, 4, 8, 409, 818, 1636, 3272, 20297, 40594, 81188, 162376, 8301473, 16602946, 33205892, 66411784]

約数ペア:

[(1, 66411784), (2, 33205892), (4, 16602946), (8, 8301473), (409, 162376), (818, 81188), (1636, 40594), (3272, 20297)]