18913280

素因数分解:

$2^{11}\times 5^1\times {\mathrm{1847}}^1$

素因数の和:1874

約数の個数: 48

約数和(自身を含む): 45405360

約数和(自身を除く): 26492080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 1847, 2048, 2560, 3694, 5120, 7388, 9235, 10240, 14776, 18470, 29552, 36940, 59104, 73880, 118208, 147760, 236416, 295520, 472832, 591040, 945664, 1182080, 1891328, 2364160, 3782656, 4728320, 9456640, 18913280]

約数ペア:

[(1, 18913280), (2, 9456640), (4, 4728320), (5, 3782656), (8, 2364160), (10, 1891328), (16, 1182080), (20, 945664), (32, 591040), (40, 472832), (64, 295520), (80, 236416), (128, 147760), (160, 118208), (256, 73880), (320, 59104), (512, 36940), (640, 29552), (1024, 18470), (1280, 14776), (1847, 10240), (2048, 9235), (2560, 7388), (3694, 5120)]