80706321

素因数分解:

$3^3\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:486

約数の個数: 32

約数和(自身を含む): 122355200

約数和(自身を除く): 41648879

約数列:

[1, 3, 9, 27, 79, 157, 237, 241, 471, 711, 723, 1413, 2133, 2169, 4239, 6507, 12403, 19039, 37209, 37837, 57117, 111627, 113511, 171351, 334881, 340533, 514053, 1021599, 2989123, 8967369, 26902107, 80706321]

約数ペア:

[(1, 80706321), (3, 26902107), (9, 8967369), (27, 2989123), (79, 1021599), (157, 514053), (237, 340533), (241, 334881), (471, 171351), (711, 113511), (723, 111627), (1413, 57117), (2133, 37837), (2169, 37209), (4239, 19039), (6507, 12403)]