131287975

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{57709}}^1$

素因数の和:57739

約数の個数: 24

約数和(自身を含む): 200369120

約数和(自身を除く): 69081145

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 57709, 288545, 403963, 750217, 1442725, 2019815, 3751085, 5251519, 10099075, 18755425, 26257595, 131287975]

約数ペア:

[(1, 131287975), (5, 26257595), (7, 18755425), (13, 10099075), (25, 5251519), (35, 3751085), (65, 2019815), (91, 1442725), (175, 750217), (325, 403963), (455, 288545), (2275, 57709)]