81715678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1\times {\mathrm{487}}^1$

素因数の和:792

約数の個数: 32

約数和(自身を含む): 139138560

約数和(自身を除く): 57422882

約数列:

[1, 2, 11, 22, 29, 58, 263, 319, 487, 526, 638, 974, 2893, 5357, 5786, 7627, 10714, 14123, 15254, 28246, 83897, 128081, 155353, 167794, 256162, 310706, 1408891, 2817782, 3714349, 7428698, 40857839, 81715678]

約数ペア:

[(1, 81715678), (2, 40857839), (11, 7428698), (22, 3714349), (29, 2817782), (58, 1408891), (263, 310706), (319, 256162), (487, 167794), (526, 155353), (638, 128081), (974, 83897), (2893, 28246), (5357, 15254), (5786, 14123), (7627, 10714)]