20800960

素因数分解:

$2^6\times 5^1\times {\mathrm{65003}}^1$

素因数の和:65020

約数の個数: 28

約数和(自身を含む): 49533048

約数和(自身を除く): 28732088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65003, 130006, 260012, 325015, 520024, 650030, 1040048, 1300060, 2080096, 2600120, 4160192, 5200240, 10400480, 20800960]

約数ペア:

[(1, 20800960), (2, 10400480), (4, 5200240), (5, 4160192), (8, 2600120), (10, 2080096), (16, 1300060), (20, 1040048), (32, 650030), (40, 520024), (64, 325015), (80, 260012), (160, 130006), (320, 65003)]