289488655

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1\times {\mathrm{257}}^1$

素因数の和:519

約数の個数: 32

約数和(自身を含む): 374492160

約数和(自身を除く): 85003505

約数列:

[1, 5, 19, 71, 95, 167, 257, 355, 835, 1285, 1349, 3173, 4883, 6745, 11857, 15865, 18247, 24415, 42919, 59285, 91235, 214595, 225283, 346693, 815461, 1126415, 1733465, 3047249, 4077305, 15236245, 57897731, 289488655]

約数ペア:

[(1, 289488655), (5, 57897731), (19, 15236245), (71, 4077305), (95, 3047249), (167, 1733465), (257, 1126415), (355, 815461), (835, 346693), (1285, 225283), (1349, 214595), (3173, 91235), (4883, 59285), (6745, 42919), (11857, 24415), (15865, 18247)]