28286780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61493}}^1$

素因数の和:61525

約数の個数: 24

約数和(自身を含む): 61985952

約数和(自身を除く): 33699172

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 61493, 122986, 245972, 307465, 614930, 1229860, 1414339, 2828678, 5657356, 7071695, 14143390, 28286780]

約数ペア:

[(1, 28286780), (2, 14143390), (4, 7071695), (5, 5657356), (10, 2828678), (20, 1414339), (23, 1229860), (46, 614930), (92, 307465), (115, 245972), (230, 122986), (460, 61493)]