1820140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13001}}^1$

素因数の和:13017

約数の個数: 24

約数和(自身を含む): 4368672

約数和(自身を除く): 2548532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 13001, 26002, 52004, 65005, 91007, 130010, 182014, 260020, 364028, 455035, 910070, 1820140]

約数ペア:

[(1, 1820140), (2, 910070), (4, 455035), (5, 364028), (7, 260020), (10, 182014), (14, 130010), (20, 91007), (28, 65005), (35, 52004), (70, 26002), (140, 13001)]