20513553985

素因数分解:

$5^1\times {\mathrm{41}}^2\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{269}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 26036873280

約数和(自身を除く): 5523319295

約数列:

[1, 5, 41, 43, 205, 211, 215, 269, 1055, 1345, 1681, 1763, 8405, 8651, 8815, 9073, 11029, 11567, 43255, 45365, 55145, 56759, 57835, 72283, 283795, 354691, 361415, 371993, 452189, 474247, 1773455, 1859965, 2260945, 2327119, 2371235, 2440637, 11635595, 12203185, 15251713, 19444127, 76258565, 95411879, 97220635, 100066117, 477059395, 500330585, 4102710797, 20513553985]

約数ペア:

[(1, 20513553985), (5, 4102710797), (41, 500330585), (43, 477059395), (205, 100066117), (211, 97220635), (215, 95411879), (269, 76258565), (1055, 19444127), (1345, 15251713), (1681, 12203185), (1763, 11635595), (8405, 2440637), (8651, 2371235), (8815, 2327119), (9073, 2260945), (11029, 1859965), (11567, 1773455), (43255, 474247), (45365, 452189), (55145, 371993), (56759, 361415), (57835, 354691), (72283, 283795)]