19944010

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22409}}^1$

素因数の和:22505

約数の個数: 16

約数和(自身を含む): 36304200

約数和(自身を除く): 16360190

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 22409, 44818, 112045, 224090, 1994401, 3988802, 9972005, 19944010]

約数ペア:

[(1, 19944010), (2, 9972005), (5, 3988802), (10, 1994401), (89, 224090), (178, 112045), (445, 44818), (890, 22409)]