20685220

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27953}}^1$

素因数の和:27999

約数の個数: 24

約数和(自身を含む): 44614584

約数和(自身を除く): 23929364

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 27953, 55906, 111812, 139765, 279530, 559060, 1034261, 2068522, 4137044, 5171305, 10342610, 20685220]

約数ペア:

[(1, 20685220), (2, 10342610), (4, 5171305), (5, 4137044), (10, 2068522), (20, 1034261), (37, 559060), (74, 279530), (148, 139765), (185, 111812), (370, 55906), (740, 27953)]