81216056

素因数分解:

$2^3\times {\mathrm{977}}^1\times {\mathrm{10391}}^1$

素因数の和:11374

約数の個数: 16

約数和(自身を含む): 152450640

約数和(自身を除く): 71234584

約数列:

[1, 2, 4, 8, 977, 1954, 3908, 7816, 10391, 20782, 41564, 83128, 10152007, 20304014, 40608028, 81216056]

約数ペア:

[(1, 81216056), (2, 40608028), (4, 20304014), (8, 10152007), (977, 83128), (1954, 41564), (3908, 20782), (7816, 10391)]