20200970

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:590

約数の個数: 32

約数和(自身を含む): 37635840

約数和(自身を除く): 17434870

約数列:

[1, 2, 5, 10, 43, 86, 109, 215, 218, 430, 431, 545, 862, 1090, 2155, 4310, 4687, 9374, 18533, 23435, 37066, 46870, 46979, 92665, 93958, 185330, 234895, 469790, 2020097, 4040194, 10100485, 20200970]

約数ペア:

[(1, 20200970), (2, 10100485), (5, 4040194), (10, 2020097), (43, 469790), (86, 234895), (109, 185330), (215, 93958), (218, 92665), (430, 46979), (431, 46870), (545, 37066), (862, 23435), (1090, 18533), (2155, 9374), (4310, 4687)]