209315360

素因数分解:

$2^5\times 5^1\times {\mathrm{1308221}}^1$

素因数の和:1308236

約数の個数: 24

約数和(自身を含む): 494507916

約数和(自身を除く): 285192556

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1308221, 2616442, 5232884, 6541105, 10465768, 13082210, 20931536, 26164420, 41863072, 52328840, 104657680, 209315360]

約数ペア:

[(1, 209315360), (2, 104657680), (4, 52328840), (5, 41863072), (8, 26164420), (10, 20931536), (16, 13082210), (20, 10465768), (32, 6541105), (40, 5232884), (80, 2616442), (160, 1308221)]