19895825

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:341

約数の個数: 24

約数和(自身を含む): 25685112

約数和(自身を除く): 5789287

約数列:

[1, 5, 25, 37, 137, 157, 185, 685, 785, 925, 3425, 3925, 5069, 5809, 21509, 25345, 29045, 107545, 126725, 145225, 537725, 795833, 3979165, 19895825]

約数ペア:

[(1, 19895825), (5, 3979165), (25, 795833), (37, 537725), (137, 145225), (157, 126725), (185, 107545), (685, 29045), (785, 25345), (925, 21509), (3425, 5809), (3925, 5069)]