81386585

素因数分解:

$5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{16729}}^1$

素因数の和:16880

約数の個数: 16

約数和(自身を含む): 112425600

約数和(自身を除く): 31039015

約数列:

[1, 5, 7, 35, 139, 695, 973, 4865, 16729, 83645, 117103, 585515, 2325331, 11626655, 16277317, 81386585]

約数ペア:

[(1, 81386585), (5, 16277317), (7, 11626655), (35, 2325331), (139, 585515), (695, 117103), (973, 83645), (4865, 16729)]