40002320

素因数分解:

$2^4\times 5^1\times {\mathrm{500029}}^1$

素因数の和:500042

約数の個数: 20

約数和(自身を含む): 93005580

約数和(自身を除く): 53003260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 500029, 1000058, 2000116, 2500145, 4000232, 5000290, 8000464, 10000580, 20001160, 40002320]

約数ペア:

[(1, 40002320), (2, 20001160), (4, 10000580), (5, 8000464), (8, 5000290), (10, 4000232), (16, 2500145), (20, 2000116), (40, 1000058), (80, 500029)]