20243900

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{2087}}^1$

素因数の和:2198

約数の個数: 36

約数和(自身を含む): 44403408

約数和(自身を除く): 24159508

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 194, 388, 485, 970, 1940, 2087, 2425, 4174, 4850, 8348, 9700, 10435, 20870, 41740, 52175, 104350, 202439, 208700, 404878, 809756, 1012195, 2024390, 4048780, 5060975, 10121950, 20243900]

約数ペア:

[(1, 20243900), (2, 10121950), (4, 5060975), (5, 4048780), (10, 2024390), (20, 1012195), (25, 809756), (50, 404878), (97, 208700), (100, 202439), (194, 104350), (388, 52175), (485, 41740), (970, 20870), (1940, 10435), (2087, 9700), (2425, 8348), (4174, 4850)]