280415079

素因数分解:

$3^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{22367}}^1$

素因数の和:22579

約数の個数: 24

約数和(自身を含む): 465254400

約数和(自身を除く): 184839321

約数列:

[1, 3, 7, 9, 21, 63, 199, 597, 1393, 1791, 4179, 12537, 22367, 67101, 156569, 201303, 469707, 1409121, 4451033, 13353099, 31157231, 40059297, 93471693, 280415079]

約数ペア:

[(1, 280415079), (3, 93471693), (7, 40059297), (9, 31157231), (21, 13353099), (63, 4451033), (199, 1409121), (597, 469707), (1393, 201303), (1791, 156569), (4179, 67101), (12537, 22367)]