1280960

素因数分解:

$2^6\times 5^1\times {\mathrm{4003}}^1$

素因数の和:4020

約数の個数: 28

約数和(自身を含む): 3051048

約数和(自身を除く): 1770088

約数列:

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

約数ペア:

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