3948400

素因数分解:

$2^4\times 5^2\times {\mathrm{9871}}^1$

素因数の和:9889

約数の個数: 30

約数和(自身を含む): 9486992

約数和(自身を除く): 5538592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 9871, 19742, 39484, 49355, 78968, 98710, 157936, 197420, 246775, 394840, 493550, 789680, 987100, 1974200, 3948400]

約数ペア:

[(1, 3948400), (2, 1974200), (4, 987100), (5, 789680), (8, 493550), (10, 394840), (16, 246775), (20, 197420), (25, 157936), (40, 98710), (50, 78968), (80, 49355), (100, 39484), (200, 19742), (400, 9871)]