81090128

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{17659}}^1$

素因数の和:17715

約数の個数: 40

約数和(自身を含む): 183946560

約数和(自身を除く): 102856432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 164, 287, 328, 574, 656, 1148, 2296, 4592, 17659, 35318, 70636, 123613, 141272, 247226, 282544, 494452, 724019, 988904, 1448038, 1977808, 2896076, 5068133, 5792152, 10136266, 11584304, 20272532, 40545064, 81090128]

約数ペア:

[(1, 81090128), (2, 40545064), (4, 20272532), (7, 11584304), (8, 10136266), (14, 5792152), (16, 5068133), (28, 2896076), (41, 1977808), (56, 1448038), (82, 988904), (112, 724019), (164, 494452), (287, 282544), (328, 247226), (574, 141272), (656, 123613), (1148, 70636), (2296, 35318), (4592, 17659)]