207910780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{135007}}^1$

素因数の和:135034

約数の個数: 48

約数和(自身を含む): 544352256

約数和(自身を除く): 336441476

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 135007, 270014, 540028, 675035, 945049, 1350070, 1485077, 1890098, 2700140, 2970154, 3780196, 4725245, 5940308, 7425385, 9450490, 10395539, 14850770, 18900980, 20791078, 29701540, 41582156, 51977695, 103955390, 207910780]

約数ペア:

[(1, 207910780), (2, 103955390), (4, 51977695), (5, 41582156), (7, 29701540), (10, 20791078), (11, 18900980), (14, 14850770), (20, 10395539), (22, 9450490), (28, 7425385), (35, 5940308), (44, 4725245), (55, 3780196), (70, 2970154), (77, 2700140), (110, 1890098), (140, 1485077), (154, 1350070), (220, 945049), (308, 675035), (385, 540028), (770, 270014), (1540, 135007)]