20647510160

素因数分解:

$2^4\times 5^1\times {\mathrm{258093877}}^1$

素因数の和:258093890

約数の個数: 20

約数和(自身を含む): 48005461308

約数和(自身を除く): 27357951148

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 258093877, 516187754, 1032375508, 1290469385, 2064751016, 2580938770, 4129502032, 5161877540, 10323755080, 20647510160]

約数ペア:

[(1, 20647510160), (2, 10323755080), (4, 5161877540), (5, 4129502032), (8, 2580938770), (10, 2064751016), (16, 1290469385), (20, 1032375508), (40, 516187754), (80, 258093877)]