20899040

素因数分解:

$2^5\times 5^1\times {\mathrm{130619}}^1$

素因数の和:130634

約数の個数: 24

約数和(自身を含む): 49374360

約数和(自身を除く): 28475320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 130619, 261238, 522476, 653095, 1044952, 1306190, 2089904, 2612380, 4179808, 5224760, 10449520, 20899040]

約数ペア:

[(1, 20899040), (2, 10449520), (4, 5224760), (5, 4179808), (8, 2612380), (10, 2089904), (16, 1306190), (20, 1044952), (32, 653095), (40, 522476), (80, 261238), (160, 130619)]