2019921740

素因数分解:

$2^2\times 5^1\times {\mathrm{100996087}}^1$

素因数の和:100996096

約数の個数: 12

約数和(自身を含む): 4241835696

約数和(自身を除く): 2221913956

約数列:

[1, 2, 4, 5, 10, 20, 100996087, 201992174, 403984348, 504980435, 1009960870, 2019921740]

約数ペア:

[(1, 2019921740), (2, 1009960870), (4, 504980435), (5, 403984348), (10, 201992174), (20, 100996087)]