2190020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{15643}}^1$

素因数の和:15659

約数の個数: 24

約数和(自身を含む): 5256384

約数和(自身を除く): 3066364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 15643, 31286, 62572, 78215, 109501, 156430, 219002, 312860, 438004, 547505, 1095010, 2190020]

約数ペア:

[(1, 2190020), (2, 1095010), (4, 547505), (5, 438004), (7, 312860), (10, 219002), (14, 156430), (20, 109501), (28, 78215), (35, 62572), (70, 31286), (140, 15643)]