128205

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1$

素因数の和:66

約数の個数: 48

約数和(自身を含む): 284544

約数和(自身を除く): 156339

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 37, 45, 55, 63, 77, 99, 105, 111, 165, 185, 231, 259, 315, 333, 385, 407, 495, 555, 693, 777, 1155, 1221, 1295, 1665, 2035, 2331, 2849, 3465, 3663, 3885, 6105, 8547, 11655, 14245, 18315, 25641, 42735, 128205]

約数ペア:

[(1, 128205), (3, 42735), (5, 25641), (7, 18315), (9, 14245), (11, 11655), (15, 8547), (21, 6105), (33, 3885), (35, 3663), (37, 3465), (45, 2849), (55, 2331), (63, 2035), (77, 1665), (99, 1295), (105, 1221), (111, 1155), (165, 777), (185, 693), (231, 555), (259, 495), (315, 407), (333, 385)]