12976802560

素因数分解:

$2^8\times 5^1\times {\mathrm{10138127}}^1$

素因数の和:10138148

約数の個数: 36

約数和(自身を含む): 31083500448

約数和(自身を除く): 18106697888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 10138127, 20276254, 40552508, 50690635, 81105016, 101381270, 162210032, 202762540, 324420064, 405525080, 648840128, 811050160, 1297680256, 1622100320, 2595360512, 3244200640, 6488401280, 12976802560]

約数ペア:

[(1, 12976802560), (2, 6488401280), (4, 3244200640), (5, 2595360512), (8, 1622100320), (10, 1297680256), (16, 811050160), (20, 648840128), (32, 405525080), (40, 324420064), (64, 202762540), (80, 162210032), (128, 101381270), (160, 81105016), (256, 50690635), (320, 40552508), (640, 20276254), (1280, 10138127)]