189740020

素因数分解:

$2^2\times 5^1\times {\mathrm{9487001}}^1$

素因数の和:9487010

約数の個数: 12

約数和(自身を含む): 398454084

約数和(自身を除く): 208714064

約数列:

[1, 2, 4, 5, 10, 20, 9487001, 18974002, 37948004, 47435005, 94870010, 189740020]

約数ペア:

[(1, 189740020), (2, 94870010), (4, 47435005), (5, 37948004), (10, 18974002), (20, 9487001)]