8401280

素因数分解:

$2^7\times 5^1\times {\mathrm{13127}}^1$

素因数の和:13146

約数の個数: 32

約数和(自身を含む): 20085840

約数和(自身を除く): 11684560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 13127, 26254, 52508, 65635, 105016, 131270, 210032, 262540, 420064, 525080, 840128, 1050160, 1680256, 2100320, 4200640, 8401280]

約数ペア:

[(1, 8401280), (2, 4200640), (4, 2100320), (5, 1680256), (8, 1050160), (10, 840128), (16, 525080), (20, 420064), (32, 262540), (40, 210032), (64, 131270), (80, 105016), (128, 65635), (160, 52508), (320, 26254), (640, 13127)]