81782545

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 108984960

約数和(自身を除く): 27202415

約数列:

[1, 5, 13, 65, 67, 89, 211, 335, 445, 871, 1055, 1157, 2743, 4355, 5785, 5963, 13715, 14137, 18779, 29815, 70685, 77519, 93895, 183781, 244127, 387595, 918905, 1220635, 1258193, 6290965, 16356509, 81782545]

約数ペア:

[(1, 81782545), (5, 16356509), (13, 6290965), (65, 1258193), (67, 1220635), (89, 918905), (211, 387595), (335, 244127), (445, 183781), (871, 93895), (1055, 77519), (1157, 70685), (2743, 29815), (4355, 18779), (5785, 14137), (5963, 13715)]