278167903

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 321330240

約数和(自身を除く): 43162337

約数列:

[1, 13, 41, 43, 53, 229, 533, 559, 689, 1763, 2173, 2279, 2977, 9389, 9847, 12137, 22919, 28249, 29627, 93439, 122057, 128011, 157781, 403727, 497617, 521891, 1214707, 5248451, 6469021, 6784583, 21397531, 278167903]

約数ペア:

[(1, 278167903), (13, 21397531), (41, 6784583), (43, 6469021), (53, 5248451), (229, 1214707), (533, 521891), (559, 497617), (689, 403727), (1763, 157781), (2173, 128011), (2279, 122057), (2977, 93439), (9389, 29627), (9847, 28249), (12137, 22919)]