820388540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1414463}}^1$

素因数の和:1414501

約数の個数: 24

約数和(自身を含む): 1782224640

約数和(自身を除く): 961836100

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 1414463, 2828926, 5657852, 7072315, 14144630, 28289260, 41019427, 82038854, 164077708, 205097135, 410194270, 820388540]

約数ペア:

[(1, 820388540), (2, 410194270), (4, 205097135), (5, 164077708), (10, 82038854), (20, 41019427), (29, 28289260), (58, 14144630), (116, 7072315), (145, 5657852), (290, 2828926), (580, 1414463)]