319040

素因数分解:

$2^6\times 5^1\times {\mathrm{997}}^1$

素因数の和:1014

約数の個数: 28

約数和(自身を含む): 760476

約数和(自身を除く): 441436

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 997, 1994, 3988, 4985, 7976, 9970, 15952, 19940, 31904, 39880, 63808, 79760, 159520, 319040]

約数ペア:

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