11789980

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4241}}^1$

素因数の和:4389

約数の個数: 24

約数和(自身を含む): 24942960

約数和(自身を除く): 13152980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 4241, 8482, 16964, 21205, 42410, 84820, 589499, 1178998, 2357996, 2947495, 5894990, 11789980]

約数ペア:

[(1, 11789980), (2, 5894990), (4, 2947495), (5, 2357996), (10, 1178998), (20, 589499), (139, 84820), (278, 42410), (556, 21205), (695, 16964), (1390, 8482), (2780, 4241)]