1399930

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{2857}}^1$

素因数の和:2878

約数の個数: 24

約数和(自身を含む): 2932308

約数和(自身を除く): 1532378

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 2857, 5714, 14285, 19999, 28570, 39998, 99995, 139993, 199990, 279986, 699965, 1399930]

約数ペア:

[(1, 1399930), (2, 699965), (5, 279986), (7, 199990), (10, 139993), (14, 99995), (35, 39998), (49, 28570), (70, 19999), (98, 14285), (245, 5714), (490, 2857)]