28708910

素因数分解:

$2^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{6661}}^1$

素因数の和:7099

約数の個数: 16

約数和(自身を含む): 51803712

約数和(自身を除く): 23094802

約数列:

[1, 2, 5, 10, 431, 862, 2155, 4310, 6661, 13322, 33305, 66610, 2870891, 5741782, 14354455, 28708910]

約数ペア:

[(1, 28708910), (2, 14354455), (5, 5741782), (10, 2870891), (431, 66610), (862, 33305), (2155, 13322), (4310, 6661)]