19723880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1949}}^1$

素因数の和:1994

約数の個数: 64

約数和(自身を含む): 50544000

約数和(自身を除く): 30820120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 1949, 2024, 2530, 3898, 5060, 7796, 9745, 10120, 15592, 19490, 21439, 38980, 42878, 44827, 77960, 85756, 89654, 107195, 171512, 179308, 214390, 224135, 358616, 428780, 448270, 493097, 857560, 896540, 986194, 1793080, 1972388, 2465485, 3944776, 4930970, 9861940, 19723880]

約数ペア:

[(1, 19723880), (2, 9861940), (4, 4930970), (5, 3944776), (8, 2465485), (10, 1972388), (11, 1793080), (20, 986194), (22, 896540), (23, 857560), (40, 493097), (44, 448270), (46, 428780), (55, 358616), (88, 224135), (92, 214390), (110, 179308), (115, 171512), (184, 107195), (220, 89654), (230, 85756), (253, 77960), (440, 44827), (460, 42878), (506, 38980), (920, 21439), (1012, 19490), (1265, 15592), (1949, 10120), (2024, 9745), (2530, 7796), (3898, 5060)]