2019980788

素因数分解:

$2^2\times 7^1\times {\mathrm{72142171}}^1$

素因数の和:72142182

約数の個数: 12

約数和(自身を含む): 4039961632

約数和(自身を除く): 2019980844

約数列:

[1, 2, 4, 7, 14, 28, 72142171, 144284342, 288568684, 504995197, 1009990394, 2019980788]

約数ペア:

[(1, 2019980788), (2, 1009990394), (4, 504995197), (7, 288568684), (14, 144284342), (28, 72142171)]