2658645

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 5189184

約数和(自身を除く): 2530539

約数列:

[1, 3, 5, 9, 11, 15, 33, 41, 45, 55, 99, 123, 131, 165, 205, 369, 393, 451, 495, 615, 655, 1179, 1353, 1441, 1845, 1965, 2255, 4059, 4323, 5371, 5895, 6765, 7205, 12969, 16113, 20295, 21615, 26855, 48339, 59081, 64845, 80565, 177243, 241695, 295405, 531729, 886215, 2658645]

約数ペア:

[(1, 2658645), (3, 886215), (5, 531729), (9, 295405), (11, 241695), (15, 177243), (33, 80565), (41, 64845), (45, 59081), (55, 48339), (99, 26855), (123, 21615), (131, 20295), (165, 16113), (205, 12969), (369, 7205), (393, 6765), (451, 5895), (495, 5371), (615, 4323), (655, 4059), (1179, 2255), (1353, 1965), (1441, 1845)]