1980020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{14143}}^1$

素因数の和:14159

約数の個数: 24

約数和(自身を含む): 4752384

約数和(自身を除く): 2772364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 14143, 28286, 56572, 70715, 99001, 141430, 198002, 282860, 396004, 495005, 990010, 1980020]

約数ペア:

[(1, 1980020), (2, 990010), (4, 495005), (5, 396004), (7, 282860), (10, 198002), (14, 141430), (20, 99001), (28, 70715), (35, 56572), (70, 28286), (140, 14143)]