2887780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{20627}}^1$

素因数の和:20643

約数の個数: 24

約数和(自身を含む): 6931008

約数和(自身を除く): 4043228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 20627, 41254, 82508, 103135, 144389, 206270, 288778, 412540, 577556, 721945, 1443890, 2887780]

約数ペア:

[(1, 2887780), (2, 1443890), (4, 721945), (5, 577556), (7, 412540), (10, 288778), (14, 206270), (20, 144389), (28, 103135), (35, 82508), (70, 41254), (140, 20627)]