81679040

素因数分解:

$2^6\times 5^1\times {\mathrm{255247}}^1$

素因数の和:255264

約数の個数: 28

約数和(自身を含む): 194498976

約数和(自身を除く): 112819936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 255247, 510494, 1020988, 1276235, 2041976, 2552470, 4083952, 5104940, 8167904, 10209880, 16335808, 20419760, 40839520, 81679040]

約数ペア:

[(1, 81679040), (2, 40839520), (4, 20419760), (5, 16335808), (8, 10209880), (10, 8167904), (16, 5104940), (20, 4083952), (32, 2552470), (40, 2041976), (64, 1276235), (80, 1020988), (160, 510494), (320, 255247)]