20944640

素因数分解:

$2^8\times 5^1\times {\mathrm{16363}}^1$

素因数の和:16384

約数の個数: 36

約数和(自身を含む): 50172024

約数和(自身を除く): 29227384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 16363, 32726, 65452, 81815, 130904, 163630, 261808, 327260, 523616, 654520, 1047232, 1309040, 2094464, 2618080, 4188928, 5236160, 10472320, 20944640]

約数ペア:

[(1, 20944640), (2, 10472320), (4, 5236160), (5, 4188928), (8, 2618080), (10, 2094464), (16, 1309040), (20, 1047232), (32, 654520), (40, 523616), (64, 327260), (80, 261808), (128, 163630), (160, 130904), (256, 81815), (320, 65452), (640, 32726), (1280, 16363)]