19990744

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{433}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 39060000

約数和(自身を除く): 19069256

約数列:

[1, 2, 4, 8, 29, 58, 116, 199, 232, 398, 433, 796, 866, 1592, 1732, 3464, 5771, 11542, 12557, 23084, 25114, 46168, 50228, 86167, 100456, 172334, 344668, 689336, 2498843, 4997686, 9995372, 19990744]

約数ペア:

[(1, 19990744), (2, 9995372), (4, 4997686), (8, 2498843), (29, 689336), (58, 344668), (116, 172334), (199, 100456), (232, 86167), (398, 50228), (433, 46168), (796, 25114), (866, 23084), (1592, 12557), (1732, 11542), (3464, 5771)]