27750555

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2381}}^1$

素因数の和:2436

約数の個数: 48

約数和(自身を含む): 56481984

約数和(自身を除く): 28731429

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 37, 45, 63, 105, 111, 185, 259, 315, 333, 555, 777, 1295, 1665, 2331, 2381, 3885, 7143, 11655, 11905, 16667, 21429, 35715, 50001, 83335, 88097, 107145, 150003, 250005, 264291, 440485, 616679, 750015, 792873, 1321455, 1850037, 3083395, 3964365, 5550111, 9250185, 27750555]

約数ペア:

[(1, 27750555), (3, 9250185), (5, 5550111), (7, 3964365), (9, 3083395), (15, 1850037), (21, 1321455), (35, 792873), (37, 750015), (45, 616679), (63, 440485), (105, 264291), (111, 250005), (185, 150003), (259, 107145), (315, 88097), (333, 83335), (555, 50001), (777, 35715), (1295, 21429), (1665, 16667), (2331, 11905), (2381, 11655), (3885, 7143)]