20773120

素因数分解:

$2^8\times 5^1\times {\mathrm{16229}}^1$

素因数の和:16250

約数の個数: 36

約数和(自身を含む): 49761180

約数和(自身を除く): 28988060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 16229, 32458, 64916, 81145, 129832, 162290, 259664, 324580, 519328, 649160, 1038656, 1298320, 2077312, 2596640, 4154624, 5193280, 10386560, 20773120]

約数ペア:

[(1, 20773120), (2, 10386560), (4, 5193280), (5, 4154624), (8, 2596640), (10, 2077312), (16, 1298320), (20, 1038656), (32, 649160), (40, 519328), (64, 324580), (80, 259664), (128, 162290), (160, 129832), (256, 81145), (320, 64916), (640, 32458), (1280, 16229)]