19803080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45007}}^1$

素因数の和:45029

約数の個数: 32

約数和(自身を含む): 48608640

約数和(自身を除く): 28805560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45007, 90014, 180028, 225035, 360056, 450070, 495077, 900140, 990154, 1800280, 1980308, 2475385, 3960616, 4950770, 9901540, 19803080]

約数ペア:

[(1, 19803080), (2, 9901540), (4, 4950770), (5, 3960616), (8, 2475385), (10, 1980308), (11, 1800280), (20, 990154), (22, 900140), (40, 495077), (44, 450070), (55, 360056), (88, 225035), (110, 180028), (220, 90014), (440, 45007)]