80020240

素因数分解:

$2^4\times 5^1\times {\mathrm{1000253}}^1$

素因数の和:1000266

約数の個数: 20

約数和(自身を含む): 186047244

約数和(自身を除く): 106027004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1000253, 2000506, 4001012, 5001265, 8002024, 10002530, 16004048, 20005060, 40010120, 80020240]

約数ペア:

[(1, 80020240), (2, 40010120), (4, 20005060), (5, 16004048), (8, 10002530), (10, 8002024), (16, 5001265), (20, 4001012), (40, 2000506), (80, 1000253)]