20556160

素因数分解:

$2^7\times 5^1\times {\mathrm{32119}}^1$

素因数の和:32138

約数の個数: 32

約数和(自身を含む): 49143600

約数和(自身を除く): 28587440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32119, 64238, 128476, 160595, 256952, 321190, 513904, 642380, 1027808, 1284760, 2055616, 2569520, 4111232, 5139040, 10278080, 20556160]

約数ペア:

[(1, 20556160), (2, 10278080), (4, 5139040), (5, 4111232), (8, 2569520), (10, 2055616), (16, 1284760), (20, 1027808), (32, 642380), (40, 513904), (64, 321190), (80, 256952), (128, 160595), (160, 128476), (320, 64238), (640, 32119)]