206890405

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{1009}}^1\times {\mathrm{1783}}^1$

素因数の和:2820

約数の個数: 16

約数和(自身を含む): 259464960

約数和(自身を除く): 52574555

約数列:

[1, 5, 23, 115, 1009, 1783, 5045, 8915, 23207, 41009, 116035, 205045, 1799047, 8995235, 41378081, 206890405]

約数ペア:

[(1, 206890405), (5, 41378081), (23, 8995235), (115, 1799047), (1009, 205045), (1783, 116035), (5045, 41009), (8915, 23207)]