28210640

素因数分解:

$2^4\times 5^1\times {\mathrm{352633}}^1$

素因数の和:352646

約数の個数: 20

約数和(自身を含む): 65589924

約数和(自身を除く): 37379284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 352633, 705266, 1410532, 1763165, 2821064, 3526330, 5642128, 7052660, 14105320, 28210640]

約数ペア:

[(1, 28210640), (2, 14105320), (4, 7052660), (5, 5642128), (8, 3526330), (10, 2821064), (16, 1763165), (20, 1410532), (40, 705266), (80, 352633)]