19702160

素因数分解:

$2^4\times 5^1\times {\mathrm{246277}}^1$

素因数の和:246290

約数の個数: 20

約数和(自身を含む): 45807708

約数和(自身を除く): 26105548

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 246277, 492554, 985108, 1231385, 1970216, 2462770, 3940432, 4925540, 9851080, 19702160]

約数ペア:

[(1, 19702160), (2, 9851080), (4, 4925540), (5, 3940432), (8, 2462770), (10, 1970216), (16, 1231385), (20, 985108), (40, 492554), (80, 246277)]