2021813900

素因数分解:

$2^2\times 5^2\times {\mathrm{20218139}}^1$

素因数の和:20218153

約数の個数: 18

約数和(自身を含む): 4387336380

約数和(自身を除く): 2365522480

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 20218139, 40436278, 80872556, 101090695, 202181390, 404362780, 505453475, 1010906950, 2021813900]

約数ペア:

[(1, 2021813900), (2, 1010906950), (4, 505453475), (5, 404362780), (10, 202181390), (20, 101090695), (25, 80872556), (50, 40436278), (100, 20218139)]