128189985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2707}}^1$

素因数の和:2774

約数の個数: 64

約数和(自身を含む): 262047744

約数和(自身を除く): 133857759

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 41, 55, 77, 105, 123, 165, 205, 231, 287, 385, 451, 615, 861, 1155, 1353, 1435, 2255, 2707, 3157, 4305, 6765, 8121, 9471, 13535, 15785, 18949, 29777, 40605, 47355, 56847, 89331, 94745, 110987, 148885, 208439, 284235, 332961, 446655, 554935, 625317, 776909, 1042195, 1220857, 1664805, 2330727, 3126585, 3662571, 3884545, 6104285, 8545999, 11653635, 18312855, 25637997, 42729995, 128189985]

約数ペア:

[(1, 128189985), (3, 42729995), (5, 25637997), (7, 18312855), (11, 11653635), (15, 8545999), (21, 6104285), (33, 3884545), (35, 3662571), (41, 3126585), (55, 2330727), (77, 1664805), (105, 1220857), (123, 1042195), (165, 776909), (205, 625317), (231, 554935), (287, 446655), (385, 332961), (451, 284235), (615, 208439), (861, 148885), (1155, 110987), (1353, 94745), (1435, 89331), (2255, 56847), (2707, 47355), (3157, 40605), (4305, 29777), (6765, 18949), (8121, 15785), (9471, 13535)]