80437959

素因数分解:

$3^2\times 7^3\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:465

約数の個数: 48

約数和(自身を含む): 137779200

約数和(自身を除く): 57341241

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 147, 213, 343, 367, 441, 497, 639, 1029, 1101, 1491, 2569, 3087, 3303, 3479, 4473, 7707, 10437, 17983, 23121, 24353, 26057, 31311, 53949, 73059, 78171, 125881, 161847, 182399, 219177, 234513, 377643, 547197, 1132929, 1276793, 1641591, 3830379, 8937551, 11491137, 26812653, 80437959]

約数ペア:

[(1, 80437959), (3, 26812653), (7, 11491137), (9, 8937551), (21, 3830379), (49, 1641591), (63, 1276793), (71, 1132929), (147, 547197), (213, 377643), (343, 234513), (367, 219177), (441, 182399), (497, 161847), (639, 125881), (1029, 78171), (1101, 73059), (1491, 53949), (2569, 31311), (3087, 26057), (3303, 24353), (3479, 23121), (4473, 17983), (7707, 10437)]