8987780

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4363}}^1$

素因数の和:4475

約数の個数: 24

約数和(自身を含む): 19061952

約数和(自身を除く): 10074172

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 4363, 8726, 17452, 21815, 43630, 87260, 449389, 898778, 1797556, 2246945, 4493890, 8987780]

約数ペア:

[(1, 8987780), (2, 4493890), (4, 2246945), (5, 1797556), (10, 898778), (20, 449389), (103, 87260), (206, 43630), (412, 21815), (515, 17452), (1030, 8726), (2060, 4363)]