1980559273

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{2113}}^1$

素因数の和:2222

約数の個数: 48

約数和(自身を含む): 2637460224

約数和(自身を除く): 656900951

約数列:

[1, 7, 11, 37, 47, 49, 77, 259, 329, 407, 517, 539, 1739, 1813, 2113, 2303, 2849, 3619, 12173, 14791, 19129, 19943, 23243, 25333, 78181, 85211, 99311, 103537, 133903, 162701, 547267, 695177, 859991, 937321, 1092421, 1138907, 3674507, 3830869, 4866239, 6019937, 7646947, 25721549, 40419577, 42139559, 53528629, 180050843, 282937039, 1980559273]

約数ペア:

[(1, 1980559273), (7, 282937039), (11, 180050843), (37, 53528629), (47, 42139559), (49, 40419577), (77, 25721549), (259, 7646947), (329, 6019937), (407, 4866239), (517, 3830869), (539, 3674507), (1739, 1138907), (1813, 1092421), (2113, 937321), (2303, 859991), (2849, 695177), (3619, 547267), (12173, 162701), (14791, 133903), (19129, 103537), (19943, 99311), (23243, 85211), (25333, 78181)]