20049280

素因数分解:

$2^7\times 5^1\times {\mathrm{31327}}^1$

素因数の和:31346

約数の個数: 32

約数和(自身を含む): 47931840

約数和(自身を除く): 27882560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31327, 62654, 125308, 156635, 250616, 313270, 501232, 626540, 1002464, 1253080, 2004928, 2506160, 4009856, 5012320, 10024640, 20049280]

約数ペア:

[(1, 20049280), (2, 10024640), (4, 5012320), (5, 4009856), (8, 2506160), (10, 2004928), (16, 1253080), (20, 1002464), (32, 626540), (40, 501232), (64, 313270), (80, 250616), (128, 156635), (160, 125308), (320, 62654), (640, 31327)]