1981490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{28307}}^1$

素因数の和:28321

約数の個数: 16

約数和(自身を含む): 4076352

約数和(自身を除く): 2094862

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 28307, 56614, 141535, 198149, 283070, 396298, 990745, 1981490]

約数ペア:

[(1, 1981490), (2, 990745), (5, 396298), (7, 283070), (10, 198149), (14, 141535), (35, 56614), (70, 28307)]