2940140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{21001}}^1$

素因数の和:21017

約数の個数: 24

約数和(自身を含む): 7056672

約数和(自身を除く): 4116532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 21001, 42002, 84004, 105005, 147007, 210010, 294014, 420020, 588028, 735035, 1470070, 2940140]

約数ペア:

[(1, 2940140), (2, 1470070), (4, 735035), (5, 588028), (7, 420020), (10, 294014), (14, 210010), (20, 147007), (28, 105005), (35, 84004), (70, 42002), (140, 21001)]