19727800

素因数分解:

$2^3\times 5^2\times {\mathrm{98639}}^1$

素因数の和:98655

約数の個数: 24

約数和(自身を含む): 45867600

約数和(自身を除く): 26139800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 98639, 197278, 394556, 493195, 789112, 986390, 1972780, 2465975, 3945560, 4931950, 9863900, 19727800]

約数ペア:

[(1, 19727800), (2, 9863900), (4, 4931950), (5, 3945560), (8, 2465975), (10, 1972780), (20, 986390), (25, 789112), (40, 493195), (50, 394556), (100, 197278), (200, 98639)]