20817400

素因数分解:

$2^3\times 5^2\times {\mathrm{104087}}^1$

素因数の和:104103

約数の個数: 24

約数和(自身を含む): 48400920

約数和(自身を除く): 27583520

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 104087, 208174, 416348, 520435, 832696, 1040870, 2081740, 2602175, 4163480, 5204350, 10408700, 20817400]

約数ペア:

[(1, 20817400), (2, 10408700), (4, 5204350), (5, 4163480), (8, 2602175), (10, 2081740), (20, 1040870), (25, 832696), (40, 520435), (50, 416348), (100, 208174), (200, 104087)]