20199089905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{1039}}^1\times {\mathrm{204641}}^1$

素因数の和:205704

約数の個数: 16

約数和(自身を含む): 25539321600

約数和(自身を除く): 5340231695

約数列:

[1, 5, 19, 95, 1039, 5195, 19741, 98705, 204641, 1023205, 3888179, 19440895, 212621999, 1063109995, 4039817981, 20199089905]

約数ペア:

[(1, 20199089905), (5, 4039817981), (19, 1063109995), (95, 212621999), (1039, 19440895), (5195, 3888179), (19741, 1023205), (98705, 204641)]