2009205

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1$

素因数の和:80

約数の個数: 60

約数和(自身を含む): 4055436

約数和(自身を除く): 2046231

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 41, 45, 55, 81, 99, 121, 123, 135, 165, 205, 297, 363, 369, 405, 451, 495, 605, 615, 891, 1089, 1107, 1353, 1485, 1815, 1845, 2255, 3267, 3321, 4059, 4455, 4961, 5445, 5535, 6765, 9801, 12177, 14883, 16335, 16605, 20295, 24805, 36531, 44649, 49005, 60885, 74415, 133947, 182655, 223245, 401841, 669735, 2009205]

約数ペア:

[(1, 2009205), (3, 669735), (5, 401841), (9, 223245), (11, 182655), (15, 133947), (27, 74415), (33, 60885), (41, 49005), (45, 44649), (55, 36531), (81, 24805), (99, 20295), (121, 16605), (123, 16335), (135, 14883), (165, 12177), (205, 9801), (297, 6765), (363, 5535), (369, 5445), (405, 4961), (451, 4455), (495, 4059), (605, 3321), (615, 3267), (891, 2255), (1089, 1845), (1107, 1815), (1353, 1485)]