258889225

素因数分解:

$5^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{3803}}^1$

素因数の和:4209

約数の個数: 24

約数和(自身を含む): 367922880

約数和(自身を除く): 109033655

約数列:

[1, 5, 7, 25, 35, 175, 389, 1945, 2723, 3803, 9725, 13615, 19015, 26621, 68075, 95075, 133105, 665525, 1479367, 7396835, 10355569, 36984175, 51777845, 258889225]

約数ペア:

[(1, 258889225), (5, 51777845), (7, 36984175), (25, 10355569), (35, 7396835), (175, 1479367), (389, 665525), (1945, 133105), (2723, 95075), (3803, 68075), (9725, 26621), (13615, 19015)]