18657280

素因数分解:

$2^{12}\times 5^1\times {\mathrm{911}}^1$

素因数の和:940

約数の個数: 52

約数和(自身を含む): 44821152

約数和(自身を除く): 26163872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 911, 1024, 1280, 1822, 2048, 2560, 3644, 4096, 4555, 5120, 7288, 9110, 10240, 14576, 18220, 20480, 29152, 36440, 58304, 72880, 116608, 145760, 233216, 291520, 466432, 583040, 932864, 1166080, 1865728, 2332160, 3731456, 4664320, 9328640, 18657280]

約数ペア:

[(1, 18657280), (2, 9328640), (4, 4664320), (5, 3731456), (8, 2332160), (10, 1865728), (16, 1166080), (20, 932864), (32, 583040), (40, 466432), (64, 291520), (80, 233216), (128, 145760), (160, 116608), (256, 72880), (320, 58304), (512, 36440), (640, 29152), (911, 20480), (1024, 18220), (1280, 14576), (1822, 10240), (2048, 9110), (2560, 7288), (3644, 5120), (4096, 4555)]