66984640

素因数分解:

$2^6\times 5^1\times {\mathrm{209327}}^1$

素因数の和:209344

約数の個数: 28

約数和(自身を含む): 159507936

約数和(自身を除く): 92523296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 209327, 418654, 837308, 1046635, 1674616, 2093270, 3349232, 4186540, 6698464, 8373080, 13396928, 16746160, 33492320, 66984640]

約数ペア:

[(1, 66984640), (2, 33492320), (4, 16746160), (5, 13396928), (8, 8373080), (10, 6698464), (16, 4186540), (20, 3349232), (32, 2093270), (40, 1674616), (64, 1046635), (80, 837308), (160, 418654), (320, 209327)]