20584640

素因数分解:

$2^6\times 5^1\times {\mathrm{64327}}^1$

素因数の和:64344

約数の個数: 28

約数和(自身を含む): 49017936

約数和(自身を除く): 28433296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 64327, 128654, 257308, 321635, 514616, 643270, 1029232, 1286540, 2058464, 2573080, 4116928, 5146160, 10292320, 20584640]

約数ペア:

[(1, 20584640), (2, 10292320), (4, 5146160), (5, 4116928), (8, 2573080), (10, 2058464), (16, 1286540), (20, 1029232), (32, 643270), (40, 514616), (64, 321635), (80, 257308), (160, 128654), (320, 64327)]