19390160

素因数分解:

$2^4\times 5^1\times {\mathrm{242377}}^1$

素因数の和:242390

約数の個数: 20

約数和(自身を含む): 45082308

約数和(自身を除く): 25692148

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 242377, 484754, 969508, 1211885, 1939016, 2423770, 3878032, 4847540, 9695080, 19390160]

約数ペア:

[(1, 19390160), (2, 9695080), (4, 4847540), (5, 3878032), (8, 2423770), (10, 1939016), (16, 1211885), (20, 969508), (40, 484754), (80, 242377)]