165020409860

素因数分解:

$2^2\times 5^1\times {\mathrm{8251020493}}^1$

素因数の和:8251020502

約数の個数: 12

約数和(自身を含む): 346542860748

約数和(自身を除く): 181522450888

約数列:

[1, 2, 4, 5, 10, 20, 8251020493, 16502040986, 33004081972, 41255102465, 82510204930, 165020409860]

約数ペア:

[(1, 165020409860), (2, 82510204930), (4, 41255102465), (5, 33004081972), (10, 16502040986), (20, 8251020493)]