20389330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{156841}}^1$

素因数の和:156861

約数の個数: 16

約数和(自身を含む): 39524184

約数和(自身を除く): 19134854

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 156841, 313682, 784205, 1568410, 2038933, 4077866, 10194665, 20389330]

約数ペア:

[(1, 20389330), (2, 10194665), (5, 4077866), (10, 2038933), (13, 1568410), (26, 784205), (65, 313682), (130, 156841)]