19498075

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:351

約数の個数: 24

約数和(自身を含む): 25190352

約数和(自身を除く): 5692277

約数列:

[1, 5, 25, 37, 107, 185, 197, 535, 925, 985, 2675, 3959, 4925, 7289, 19795, 21079, 36445, 98975, 105395, 182225, 526975, 779923, 3899615, 19498075]

約数ペア:

[(1, 19498075), (5, 3899615), (25, 779923), (37, 526975), (107, 182225), (185, 105395), (197, 98975), (535, 36445), (925, 21079), (985, 19795), (2675, 7289), (3959, 4925)]