28750180

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{7297}}^1$

素因数の和:7503

約数の個数: 24

約数和(自身を含む): 60690168

約数和(自身を除く): 31939988

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 7297, 14594, 29188, 36485, 72970, 145940, 1437509, 2875018, 5750036, 7187545, 14375090, 28750180]

約数ペア:

[(1, 28750180), (2, 14375090), (4, 7187545), (5, 5750036), (10, 2875018), (20, 1437509), (197, 145940), (394, 72970), (788, 36485), (985, 29188), (1970, 14594), (3940, 7297)]