1861925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{337}}^1$

素因数の和:377

約数の個数: 24

約数和(自身を含む): 2640456

約数和(自身を除く): 778531

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 337, 425, 1105, 1685, 4381, 5525, 5729, 8425, 21905, 28645, 74477, 109525, 143225, 372385, 1861925]

約数ペア:

[(1, 1861925), (5, 372385), (13, 143225), (17, 109525), (25, 74477), (65, 28645), (85, 21905), (221, 8425), (325, 5729), (337, 5525), (425, 4381), (1105, 1685)]