28156160

素因数分解:

$2^8\times 5^1\times {\mathrm{21997}}^1$

素因数の和:22018

約数の個数: 36

約数和(自身を含む): 67445868

約数和(自身を除く): 39289708

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 21997, 43994, 87988, 109985, 175976, 219970, 351952, 439940, 703904, 879880, 1407808, 1759760, 2815616, 3519520, 5631232, 7039040, 14078080, 28156160]

約数ペア:

[(1, 28156160), (2, 14078080), (4, 7039040), (5, 5631232), (8, 3519520), (10, 2815616), (16, 1759760), (20, 1407808), (32, 879880), (40, 703904), (64, 439940), (80, 351952), (128, 219970), (160, 175976), (256, 109985), (320, 87988), (640, 43994), (1280, 21997)]