204085120

素因数分解:

$2^7\times 5^1\times {\mathrm{318883}}^1$

素因数の和:318902

約数の個数: 32

約数和(自身を含む): 487892520

約数和(自身を除く): 283807400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 318883, 637766, 1275532, 1594415, 2551064, 3188830, 5102128, 6377660, 10204256, 12755320, 20408512, 25510640, 40817024, 51021280, 102042560, 204085120]

約数ペア:

[(1, 204085120), (2, 102042560), (4, 51021280), (5, 40817024), (8, 25510640), (10, 20408512), (16, 12755320), (20, 10204256), (32, 6377660), (40, 5102128), (64, 3188830), (80, 2551064), (128, 1594415), (160, 1275532), (320, 637766), (640, 318883)]