204518075

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{28307}}^1$

素因数の和:28351

約数の個数: 18

約数和(自身を含む): 269407236

約数和(自身を除く): 64889161

約数列:

[1, 5, 17, 25, 85, 289, 425, 1445, 7225, 28307, 141535, 481219, 707675, 2406095, 8180723, 12030475, 40903615, 204518075]

約数ペア:

[(1, 204518075), (5, 40903615), (17, 12030475), (25, 8180723), (85, 2406095), (289, 707675), (425, 481219), (1445, 141535), (7225, 28307)]