19188978860

素因数分解:

$2^2\times 5^1\times {\mathrm{959448943}}^1$

素因数の和:959448952

約数の個数: 12

約数和(自身を含む): 40296855648

約数和(自身を除く): 21107876788

約数列:

[1, 2, 4, 5, 10, 20, 959448943, 1918897886, 3837795772, 4797244715, 9594489430, 19188978860]

約数ペア:

[(1, 19188978860), (2, 9594489430), (4, 4797244715), (5, 3837795772), (10, 1918897886), (20, 959448943)]