2780455041

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{178681}}^1$

素因数の和:178726

約数の個数: 48

約数和(自身を含む): 5203219840

約数和(自身を除く): 2422764799

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 741, 819, 1197, 1729, 2223, 5187, 15561, 178681, 536043, 1250767, 1608129, 2322853, 3394939, 3752301, 6968559, 10184817, 11256903, 16259971, 20905677, 23764573, 30554451, 44134207, 48779913, 71293719, 132402621, 146339739, 213881157, 308939449, 397207863, 926818347, 2780455041]

約数ペア:

[(1, 2780455041), (3, 926818347), (7, 397207863), (9, 308939449), (13, 213881157), (19, 146339739), (21, 132402621), (39, 71293719), (57, 48779913), (63, 44134207), (91, 30554451), (117, 23764573), (133, 20905677), (171, 16259971), (247, 11256903), (273, 10184817), (399, 6968559), (741, 3752301), (819, 3394939), (1197, 2322853), (1729, 1608129), (2223, 1250767), (5187, 536043), (15561, 178681)]