19753520

素因数分解:

$2^4\times 5^1\times {\mathrm{246919}}^1$

素因数の和:246932

約数の個数: 20

約数和(自身を含む): 45927120

約数和(自身を除く): 26173600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 246919, 493838, 987676, 1234595, 1975352, 2469190, 3950704, 4938380, 9876760, 19753520]

約数ペア:

[(1, 19753520), (2, 9876760), (4, 4938380), (5, 3950704), (8, 2469190), (10, 1975352), (16, 1234595), (20, 987676), (40, 493838), (80, 246919)]