987980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{7057}}^1$

素因数の和:7073

約数の個数: 24

約数和(自身を含む): 2371488

約数和(自身を除く): 1383508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 7057, 14114, 28228, 35285, 49399, 70570, 98798, 141140, 197596, 246995, 493990, 987980]

約数ペア:

[(1, 987980), (2, 493990), (4, 246995), (5, 197596), (7, 141140), (10, 98798), (14, 70570), (20, 49399), (28, 35285), (35, 28228), (70, 14114), (140, 7057)]