28128785

素因数分解:

$5^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1\times {\mathrm{283}}^1$

素因数の和:584

約数の個数: 16

約数和(自身を含む): 34379904

約数和(自身を除く): 6251119

約数列:

[1, 5, 103, 193, 283, 515, 965, 1415, 19879, 29149, 54619, 99395, 145745, 273095, 5625757, 28128785]

約数ペア:

[(1, 28128785), (5, 5625757), (103, 273095), (193, 145745), (283, 99395), (515, 54619), (965, 29149), (1415, 19879)]