25201420

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{4903}}^1$

素因数の和:5169

約数の個数: 24

約数和(自身を含む): 53139744

約数和(自身を除く): 27938324

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 4903, 5140, 9806, 19612, 24515, 49030, 98060, 1260071, 2520142, 5040284, 6300355, 12600710, 25201420]

約数ペア:

[(1, 25201420), (2, 12600710), (4, 6300355), (5, 5040284), (10, 2520142), (20, 1260071), (257, 98060), (514, 49030), (1028, 24515), (1285, 19612), (2570, 9806), (4903, 5140)]