389644160

素因数分解:

$2^7\times 5^1\times {\mathrm{608819}}^1$

素因数の和:608838

約数の個数: 32

約数和(自身を含む): 931494600

約数和(自身を除く): 541850440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 608819, 1217638, 2435276, 3044095, 4870552, 6088190, 9741104, 12176380, 19482208, 24352760, 38964416, 48705520, 77928832, 97411040, 194822080, 389644160]

約数ペア:

[(1, 389644160), (2, 194822080), (4, 97411040), (5, 77928832), (8, 48705520), (10, 38964416), (16, 24352760), (20, 19482208), (32, 12176380), (40, 9741104), (64, 6088190), (80, 4870552), (128, 3044095), (160, 2435276), (320, 1217638), (640, 608819)]