20157400

素因数分解:

$2^3\times 5^2\times {\mathrm{100787}}^1$

素因数の和:100803

約数の個数: 24

約数和(自身を含む): 46866420

約数和(自身を除く): 26709020

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 100787, 201574, 403148, 503935, 806296, 1007870, 2015740, 2519675, 4031480, 5039350, 10078700, 20157400]

約数ペア:

[(1, 20157400), (2, 10078700), (4, 5039350), (5, 4031480), (8, 2519675), (10, 2015740), (20, 1007870), (25, 806296), (40, 503935), (50, 403148), (100, 201574), (200, 100787)]