1276160

素因数分解:

$2^8\times 5^1\times {\mathrm{997}}^1$

素因数の和:1018

約数の個数: 36

約数和(自身を含む): 3059868

約数和(自身を除く): 1783708

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 997, 1280, 1994, 3988, 4985, 7976, 9970, 15952, 19940, 31904, 39880, 63808, 79760, 127616, 159520, 255232, 319040, 638080, 1276160]

約数ペア:

[(1, 1276160), (2, 638080), (4, 319040), (5, 255232), (8, 159520), (10, 127616), (16, 79760), (20, 63808), (32, 39880), (40, 31904), (64, 19940), (80, 15952), (128, 9970), (160, 7976), (256, 4985), (320, 3988), (640, 1994), (997, 1280)]