1396472320

素因数分解:

$2^9\times 5^1\times {\mathrm{545497}}^1$

素因数の和:545520

約数の個数: 40

約数和(自身を含む): 3348266724

約数和(自身を除く): 1951794404

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 545497, 1090994, 2181988, 2727485, 4363976, 5454970, 8727952, 10909940, 17455904, 21819880, 34911808, 43639760, 69823616, 87279520, 139647232, 174559040, 279294464, 349118080, 698236160, 1396472320]

約数ペア:

[(1, 1396472320), (2, 698236160), (4, 349118080), (5, 279294464), (8, 174559040), (10, 139647232), (16, 87279520), (20, 69823616), (32, 43639760), (40, 34911808), (64, 21819880), (80, 17455904), (128, 10909940), (160, 8727952), (256, 5454970), (320, 4363976), (512, 2727485), (640, 2181988), (1280, 1090994), (2560, 545497)]