20480

素因数分解:

$2^{12}\times 5^1$

素因数の和:29

約数の個数: 26

約数和(自身を含む): 49146

約数和(自身を除く): 28666

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 4096, 5120, 10240, 20480]

約数ペア:

[(1, 20480), (2, 10240), (4, 5120), (5, 4096), (8, 2560), (10, 2048), (16, 1280), (20, 1024), (32, 640), (40, 512), (64, 320), (80, 256), (128, 160)]