203498320

素因数分解:

$2^4\times 5^1\times {\mathrm{2543729}}^1$

素因数の和:2543742

約数の個数: 20

約数和(自身を含む): 473133780

約数和(自身を除く): 269635460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2543729, 5087458, 10174916, 12718645, 20349832, 25437290, 40699664, 50874580, 101749160, 203498320]

約数ペア:

[(1, 203498320), (2, 101749160), (4, 50874580), (5, 40699664), (8, 25437290), (10, 20349832), (16, 12718645), (20, 10174916), (40, 5087458), (80, 2543729)]