28251820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61417}}^1$

素因数の和:61449

約数の個数: 24

約数和(自身を含む): 61909344

約数和(自身を除く): 33657524

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 61417, 122834, 245668, 307085, 614170, 1228340, 1412591, 2825182, 5650364, 7062955, 14125910, 28251820]

約数ペア:

[(1, 28251820), (2, 14125910), (4, 7062955), (5, 5650364), (10, 2825182), (20, 1412591), (23, 1228340), (46, 614170), (92, 307085), (115, 245668), (230, 122834), (460, 61417)]