20971840

素因数分解:

$2^6\times 5^1\times {\mathrm{65537}}^1$

素因数の和:65554

約数の個数: 28

約数和(自身を含む): 49939956

約数和(自身を除く): 28968116

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65537, 131074, 262148, 327685, 524296, 655370, 1048592, 1310740, 2097184, 2621480, 4194368, 5242960, 10485920, 20971840]

約数ペア:

[(1, 20971840), (2, 10485920), (4, 5242960), (5, 4194368), (8, 2621480), (10, 2097184), (16, 1310740), (20, 1048592), (32, 655370), (40, 524296), (64, 327685), (80, 262148), (160, 131074), (320, 65537)]