19387280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{22031}}^1$

素因数の和:22055

約数の個数: 40

約数和(自身を含む): 49175424

約数和(自身を除く): 29788144

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 22031, 44062, 88124, 110155, 176248, 220310, 242341, 352496, 440620, 484682, 881240, 969364, 1211705, 1762480, 1938728, 2423410, 3877456, 4846820, 9693640, 19387280]

約数ペア:

[(1, 19387280), (2, 9693640), (4, 4846820), (5, 3877456), (8, 2423410), (10, 1938728), (11, 1762480), (16, 1211705), (20, 969364), (22, 881240), (40, 484682), (44, 440620), (55, 352496), (80, 242341), (88, 220310), (110, 176248), (176, 110155), (220, 88124), (440, 44062), (880, 22031)]