19783040

素因数分解:

$2^7\times 5^1\times {\mathrm{30911}}^1$

素因数の和:30930

約数の個数: 32

約数和(自身を含む): 47295360

約数和(自身を除く): 27512320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 30911, 61822, 123644, 154555, 247288, 309110, 494576, 618220, 989152, 1236440, 1978304, 2472880, 3956608, 4945760, 9891520, 19783040]

約数ペア:

[(1, 19783040), (2, 9891520), (4, 4945760), (5, 3956608), (8, 2472880), (10, 1978304), (16, 1236440), (20, 989152), (32, 618220), (40, 494576), (64, 309110), (80, 247288), (128, 154555), (160, 123644), (320, 61822), (640, 30911)]