20485130

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{23017}}^1$

素因数の和:23113

約数の個数: 16

約数和(自身を含む): 37289160

約数和(自身を除く): 16804030

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 23017, 46034, 115085, 230170, 2048513, 4097026, 10242565, 20485130]

約数ペア:

[(1, 20485130), (2, 10242565), (5, 4097026), (10, 2048513), (89, 230170), (178, 115085), (445, 46034), (890, 23017)]