81328874

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{1657}}^1$

素因数の和:1790

約数の個数: 32

約数和(自身を含む): 140386176

約数和(自身を除く): 59057302

約数列:

[1, 2, 11, 22, 23, 46, 97, 194, 253, 506, 1067, 1657, 2134, 2231, 3314, 4462, 18227, 24541, 36454, 38111, 49082, 76222, 160729, 321458, 419221, 838442, 1768019, 3536038, 3696767, 7393534, 40664437, 81328874]

約数ペア:

[(1, 81328874), (2, 40664437), (11, 7393534), (22, 3696767), (23, 3536038), (46, 1768019), (97, 838442), (194, 419221), (253, 321458), (506, 160729), (1067, 76222), (1657, 49082), (2134, 38111), (2231, 36454), (3314, 24541), (4462, 18227)]