51642160

素因数分解:

$2^4\times 5^1\times {\mathrm{645527}}^1$

素因数の和:645540

約数の個数: 20

約数和(自身を含む): 120068208

約数和(自身を除く): 68426048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 645527, 1291054, 2582108, 3227635, 5164216, 6455270, 10328432, 12910540, 25821080, 51642160]

約数ペア:

[(1, 51642160), (2, 25821080), (4, 12910540), (5, 10328432), (8, 6455270), (10, 5164216), (16, 3227635), (20, 2582108), (40, 1291054), (80, 645527)]