2561920

素因数分解:

$2^7\times 5^1\times {\mathrm{4003}}^1$

素因数の和:4022

約数の個数: 32

約数和(自身を含む): 6126120

約数和(自身を除く): 3564200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 4003, 8006, 16012, 20015, 32024, 40030, 64048, 80060, 128096, 160120, 256192, 320240, 512384, 640480, 1280960, 2561920]

約数ペア:

[(1, 2561920), (2, 1280960), (4, 640480), (5, 512384), (8, 320240), (10, 256192), (16, 160120), (20, 128096), (32, 80060), (40, 64048), (64, 40030), (80, 32024), (128, 20015), (160, 16012), (320, 8006), (640, 4003)]