161849920

素因数分解:

$2^6\times 5^1\times {\mathrm{505781}}^1$

素因数の和:505798

約数の個数: 28

約数和(自身を含む): 385405884

約数和(自身を除く): 223555964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 505781, 1011562, 2023124, 2528905, 4046248, 5057810, 8092496, 10115620, 16184992, 20231240, 32369984, 40462480, 80924960, 161849920]

約数ペア:

[(1, 161849920), (2, 80924960), (4, 40462480), (5, 32369984), (8, 20231240), (10, 16184992), (16, 10115620), (20, 8092496), (32, 5057810), (40, 4046248), (64, 2528905), (80, 2023124), (160, 1011562), (320, 505781)]