6563840

素因数分解:

$2^{11}\times 5^1\times {\mathrm{641}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 15773940

約数和(自身を除く): 9210100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 641, 1024, 1280, 1282, 2048, 2560, 2564, 3205, 5120, 5128, 6410, 10240, 10256, 12820, 20512, 25640, 41024, 51280, 82048, 102560, 164096, 205120, 328192, 410240, 656384, 820480, 1312768, 1640960, 3281920, 6563840]

約数ペア:

[(1, 6563840), (2, 3281920), (4, 1640960), (5, 1312768), (8, 820480), (10, 656384), (16, 410240), (20, 328192), (32, 205120), (40, 164096), (64, 102560), (80, 82048), (128, 51280), (160, 41024), (256, 25640), (320, 20512), (512, 12820), (640, 10256), (641, 10240), (1024, 6410), (1280, 5128), (1282, 5120), (2048, 3205), (2560, 2564)]