39778220

素因数分解:

$2^2\times 5^1\times {\mathrm{953}}^1\times {\mathrm{2087}}^1$

素因数の和:3049

約数の個数: 24

約数和(自身を含む): 83661984

約数和(自身を除く): 43883764

約数列:

[1, 2, 4, 5, 10, 20, 953, 1906, 2087, 3812, 4174, 4765, 8348, 9530, 10435, 19060, 20870, 41740, 1988911, 3977822, 7955644, 9944555, 19889110, 39778220]

約数ペア:

[(1, 39778220), (2, 19889110), (4, 9944555), (5, 7955644), (10, 3977822), (20, 1988911), (953, 41740), (1906, 20870), (2087, 19060), (3812, 10435), (4174, 9530), (4765, 8348)]