80447440

素因数分解:

$2^4\times 5^1\times {\mathrm{1005593}}^1$

素因数の和:1005606

約数の個数: 20

約数和(自身を含む): 187040484

約数和(自身を除く): 106593044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1005593, 2011186, 4022372, 5027965, 8044744, 10055930, 16089488, 20111860, 40223720, 80447440]

約数ペア:

[(1, 80447440), (2, 40223720), (4, 20111860), (5, 16089488), (8, 10055930), (10, 8044744), (16, 5027965), (20, 4022372), (40, 2011186), (80, 1005593)]