81791045

素因数分解:

$5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{7103}}^1$

素因数の和:7169

約数の個数: 24

約数和(自身を含む): 116619264

約数和(自身を除く): 34828219

約数列:

[1, 5, 7, 35, 47, 49, 235, 245, 329, 1645, 2303, 7103, 11515, 35515, 49721, 248605, 333841, 348047, 1669205, 1740235, 2336887, 11684435, 16358209, 81791045]

約数ペア:

[(1, 81791045), (5, 16358209), (7, 11684435), (35, 2336887), (47, 1740235), (49, 1669205), (235, 348047), (245, 333841), (329, 248605), (1645, 49721), (2303, 35515), (7103, 11515)]