18126700

素因数分解:

$2^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{1663}}^1$

素因数の和:1786

約数の個数: 36

約数和(自身を含む): 39719680

約数和(自身を除く): 21592980

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 218, 436, 545, 1090, 1663, 2180, 2725, 3326, 5450, 6652, 8315, 10900, 16630, 33260, 41575, 83150, 166300, 181267, 362534, 725068, 906335, 1812670, 3625340, 4531675, 9063350, 18126700]

約数ペア:

[(1, 18126700), (2, 9063350), (4, 4531675), (5, 3625340), (10, 1812670), (20, 906335), (25, 725068), (50, 362534), (100, 181267), (109, 166300), (218, 83150), (436, 41575), (545, 33260), (1090, 16630), (1663, 10900), (2180, 8315), (2725, 6652), (3326, 5450)]