257107165

素因数分解:

$5^1\times 7^2\times {\mathrm{401}}^1\times {\mathrm{2617}}^1$

素因数の和:3037

約数の個数: 24

約数和(自身を含む): 359933112

約数和(自身を除く): 102825947

約数列:

[1, 5, 7, 35, 49, 245, 401, 2005, 2617, 2807, 13085, 14035, 18319, 19649, 91595, 98245, 128233, 641165, 1049417, 5247085, 7345919, 36729595, 51421433, 257107165]

約数ペア:

[(1, 257107165), (5, 51421433), (7, 36729595), (35, 7345919), (49, 5247085), (245, 1049417), (401, 641165), (2005, 128233), (2617, 98245), (2807, 91595), (13085, 19649), (14035, 18319)]