20189709740

素因数分解:

$2^2\times 5^1\times {\mathrm{1009485487}}^1$

素因数の和:1009485496

約数の個数: 12

約数和(自身を含む): 42398390496

約数和(自身を除く): 22208680756

約数列:

[1, 2, 4, 5, 10, 20, 1009485487, 2018970974, 4037941948, 5047427435, 10094854870, 20189709740]

約数ペア:

[(1, 20189709740), (2, 10094854870), (4, 5047427435), (5, 4037941948), (10, 2018970974), (20, 1009485487)]