20480360

素因数分解:

$2^3\times 5^1\times {\mathrm{512009}}^1$

素因数の和:512020

約数の個数: 16

約数和(自身を含む): 46080900

約数和(自身を除く): 25600540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 512009, 1024018, 2048036, 2560045, 4096072, 5120090, 10240180, 20480360]

約数ペア:

[(1, 20480360), (2, 10240180), (4, 5120090), (5, 4096072), (8, 2560045), (10, 2048036), (20, 1024018), (40, 512009)]