20239885

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{4093}}^1$

素因数の和:4164

約数の個数: 16

約数和(自身を含む): 25939584

約数和(自身を除く): 5699699

約数列:

[1, 5, 23, 43, 115, 215, 989, 4093, 4945, 20465, 94139, 175999, 470695, 879995, 4047977, 20239885]

約数ペア:

[(1, 20239885), (5, 4047977), (23, 879995), (43, 470695), (115, 175999), (215, 94139), (989, 20465), (4093, 4945)]