13168640

素因数分解:

$2^{12}\times 5^1\times {\mathrm{643}}^1$

素因数の和:672

約数の個数: 52

約数和(自身を含む): 31650024

約数和(自身を除く): 18481384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 643, 1024, 1280, 1286, 2048, 2560, 2572, 3215, 4096, 5120, 5144, 6430, 10240, 10288, 12860, 20480, 20576, 25720, 41152, 51440, 82304, 102880, 164608, 205760, 329216, 411520, 658432, 823040, 1316864, 1646080, 2633728, 3292160, 6584320, 13168640]

約数ペア:

[(1, 13168640), (2, 6584320), (4, 3292160), (5, 2633728), (8, 1646080), (10, 1316864), (16, 823040), (20, 658432), (32, 411520), (40, 329216), (64, 205760), (80, 164608), (128, 102880), (160, 82304), (256, 51440), (320, 41152), (512, 25720), (640, 20576), (643, 20480), (1024, 12860), (1280, 10288), (1286, 10240), (2048, 6430), (2560, 5144), (2572, 5120), (3215, 4096)]