638804738

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10687}}^1$

素因数の和:10743

約数の個数: 48

約数和(自身を含む): 1194063360

約数和(自身を除く): 555258622

約数列:

[1, 2, 11, 13, 19, 22, 26, 38, 121, 143, 209, 242, 247, 286, 418, 494, 1573, 2299, 2717, 3146, 4598, 5434, 10687, 21374, 29887, 59774, 117557, 138931, 203053, 235114, 277862, 406106, 1293127, 1528241, 2233583, 2586254, 2639689, 3056482, 4467166, 5279378, 16810651, 24569413, 29036579, 33621302, 49138826, 58073158, 319402369, 638804738]

約数ペア:

[(1, 638804738), (2, 319402369), (11, 58073158), (13, 49138826), (19, 33621302), (22, 29036579), (26, 24569413), (38, 16810651), (121, 5279378), (143, 4467166), (209, 3056482), (242, 2639689), (247, 2586254), (286, 2233583), (418, 1528241), (494, 1293127), (1573, 406106), (2299, 277862), (2717, 235114), (3146, 203053), (4598, 138931), (5434, 117557), (10687, 59774), (21374, 29887)]