28008020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{60887}}^1$

素因数の和:60919

約数の個数: 24

約数和(自身を含む): 61375104

約数和(自身を除く): 33367084

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 60887, 121774, 243548, 304435, 608870, 1217740, 1400401, 2800802, 5601604, 7002005, 14004010, 28008020]

約数ペア:

[(1, 28008020), (2, 14004010), (4, 7002005), (5, 5601604), (10, 2800802), (20, 1400401), (23, 1217740), (46, 608870), (92, 304435), (115, 243548), (230, 121774), (460, 60887)]