12807680

素因数分解:

$2^9\times 5^1\times {\mathrm{5003}}^1$

素因数の和:5026

約数の個数: 40

約数和(自身を含む): 30714552

約数和(自身を除く): 17906872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 5003, 10006, 20012, 25015, 40024, 50030, 80048, 100060, 160096, 200120, 320192, 400240, 640384, 800480, 1280768, 1600960, 2561536, 3201920, 6403840, 12807680]

約数ペア:

[(1, 12807680), (2, 6403840), (4, 3201920), (5, 2561536), (8, 1600960), (10, 1280768), (16, 800480), (20, 640384), (32, 400240), (40, 320192), (64, 200120), (80, 160096), (128, 100060), (160, 80048), (256, 50030), (320, 40024), (512, 25015), (640, 20012), (1280, 10006), (2560, 5003)]