28805075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{337}}^1$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 38726688

約数和(自身を除く): 9921613

約数列:

[1, 5, 13, 25, 65, 263, 325, 337, 1315, 1685, 3419, 4381, 6575, 8425, 17095, 21905, 85475, 88631, 109525, 443155, 1152203, 2215775, 5761015, 28805075]

約数ペア:

[(1, 28805075), (5, 5761015), (13, 2215775), (25, 1152203), (65, 443155), (263, 109525), (325, 88631), (337, 85475), (1315, 21905), (1685, 17095), (3419, 8425), (4381, 6575)]