64709281

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{719}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 85155840

約数和(自身を除く): 20446559

約数列:

[1, 7, 13, 23, 43, 91, 161, 299, 301, 559, 719, 989, 2093, 3913, 5033, 6923, 9347, 12857, 16537, 30917, 65429, 89999, 115759, 214981, 216419, 401921, 711091, 1504867, 2813447, 4977637, 9244183, 64709281]

約数ペア:

[(1, 64709281), (7, 9244183), (13, 4977637), (23, 2813447), (43, 1504867), (91, 711091), (161, 401921), (299, 216419), (301, 214981), (559, 115759), (719, 89999), (989, 65429), (2093, 30917), (3913, 16537), (5033, 12857), (6923, 9347)]