19600040

素因数分解:

$2^3\times 5^1\times {\mathrm{490001}}^1$

素因数の和:490012

約数の個数: 16

約数和(自身を含む): 44100180

約数和(自身を除く): 24500140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 490001, 980002, 1960004, 2450005, 3920008, 4900010, 9800020, 19600040]

約数ペア:

[(1, 19600040), (2, 9800020), (4, 4900010), (5, 3920008), (8, 2450005), (10, 1960004), (20, 980002), (40, 490001)]