28872705

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83689}}^1$

素因数の和:83720

約数の個数: 16

約数和(自身を含む): 48205440

約数和(自身を除く): 19332735

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 83689, 251067, 418445, 1255335, 1924847, 5774541, 9624235, 28872705]

約数ペア:

[(1, 28872705), (3, 9624235), (5, 5774541), (15, 1924847), (23, 1255335), (69, 418445), (115, 251067), (345, 83689)]