28161220

素因数分解:

$2^2\times 5^1\times {\mathrm{613}}^1\times {\mathrm{2297}}^1$

素因数の和:2919

約数の個数: 24

約数和(自身を含む): 59260824

約数和(自身を除く): 31099604

約数列:

[1, 2, 4, 5, 10, 20, 613, 1226, 2297, 2452, 3065, 4594, 6130, 9188, 11485, 12260, 22970, 45940, 1408061, 2816122, 5632244, 7040305, 14080610, 28161220]

約数ペア:

[(1, 28161220), (2, 14080610), (4, 7040305), (5, 5632244), (10, 2816122), (20, 1408061), (613, 45940), (1226, 22970), (2297, 12260), (2452, 11485), (3065, 9188), (4594, 6130)]