16820090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{240287}}^1$

素因数の和:240301

約数の個数: 16

約数和(自身を含む): 34601472

約数和(自身を除く): 17781382

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 240287, 480574, 1201435, 1682009, 2402870, 3364018, 8410045, 16820090]

約数ペア:

[(1, 16820090), (2, 8410045), (5, 3364018), (7, 2402870), (10, 1682009), (14, 1201435), (35, 480574), (70, 240287)]