168208520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{221327}}^1$

素因数の和:221357

約数の個数: 32

約数和(自身を含む): 398390400

約数和(自身を除く): 230181880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 221327, 442654, 885308, 1106635, 1770616, 2213270, 4205213, 4426540, 8410426, 8853080, 16820852, 21026065, 33641704, 42052130, 84104260, 168208520]

約数ペア:

[(1, 168208520), (2, 84104260), (4, 42052130), (5, 33641704), (8, 21026065), (10, 16820852), (19, 8853080), (20, 8410426), (38, 4426540), (40, 4205213), (76, 2213270), (95, 1770616), (152, 1106635), (190, 885308), (380, 442654), (760, 221327)]