520001279

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 650073600

約数和(自身を除く): 130072321

約数列:

[1, 7, 43, 47, 49, 59, 89, 301, 329, 413, 623, 2021, 2107, 2303, 2537, 2773, 2891, 3827, 4183, 4361, 5251, 14147, 17759, 19411, 26789, 29281, 36757, 99029, 119239, 124313, 135877, 179869, 187523, 204967, 225793, 246797, 257299, 834673, 1259083, 1580551, 1727579, 5842711, 8813581, 10612271, 11063857, 12093053, 74285897, 520001279]

約数ペア:

[(1, 520001279), (7, 74285897), (43, 12093053), (47, 11063857), (49, 10612271), (59, 8813581), (89, 5842711), (301, 1727579), (329, 1580551), (413, 1259083), (623, 834673), (2021, 257299), (2107, 246797), (2303, 225793), (2537, 204967), (2773, 187523), (2891, 179869), (3827, 135877), (4183, 124313), (4361, 119239), (5251, 99029), (14147, 36757), (17759, 29281), (19411, 26789)]