28258825

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5209}}^1$

素因数の和:5257

約数の個数: 24

約数和(自身を含む): 41346560

約数和(自身を除く): 13087735

約数列:

[1, 5, 7, 25, 31, 35, 155, 175, 217, 775, 1085, 5209, 5425, 26045, 36463, 130225, 161479, 182315, 807395, 911575, 1130353, 4036975, 5651765, 28258825]

約数ペア:

[(1, 28258825), (5, 5651765), (7, 4036975), (25, 1130353), (31, 911575), (35, 807395), (155, 182315), (175, 161479), (217, 130225), (775, 36463), (1085, 26045), (5209, 5425)]