20044365

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 17280435

約数列:

[1, 3, 5, 11, 15, 29, 33, 55, 59, 71, 87, 145, 165, 177, 213, 295, 319, 355, 435, 649, 781, 885, 957, 1065, 1595, 1711, 1947, 2059, 2343, 3245, 3905, 4189, 4785, 5133, 6177, 8555, 9735, 10295, 11715, 12567, 18821, 20945, 22649, 25665, 30885, 46079, 56463, 62835, 67947, 94105, 113245, 121481, 138237, 230395, 282315, 339735, 364443, 607405, 691185, 1336291, 1822215, 4008873, 6681455, 20044365]

約数ペア:

[(1, 20044365), (3, 6681455), (5, 4008873), (11, 1822215), (15, 1336291), (29, 691185), (33, 607405), (55, 364443), (59, 339735), (71, 282315), (87, 230395), (145, 138237), (165, 121481), (177, 113245), (213, 94105), (295, 67947), (319, 62835), (355, 56463), (435, 46079), (649, 30885), (781, 25665), (885, 22649), (957, 20945), (1065, 18821), (1595, 12567), (1711, 11715), (1947, 10295), (2059, 9735), (2343, 8555), (3245, 6177), (3905, 5133), (4189, 4785)]