19680760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44729}}^1$

素因数の和:44751

約数の個数: 32

約数和(自身を含む): 48308400

約数和(自身を除く): 28627640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 44729, 89458, 178916, 223645, 357832, 447290, 492019, 894580, 984038, 1789160, 1968076, 2460095, 3936152, 4920190, 9840380, 19680760]

約数ペア:

[(1, 19680760), (2, 9840380), (4, 4920190), (5, 3936152), (8, 2460095), (10, 1968076), (11, 1789160), (20, 984038), (22, 894580), (40, 492019), (44, 447290), (55, 357832), (88, 223645), (110, 178916), (220, 89458), (440, 44729)]