18018900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{20021}}^1$

素因数の和:20041

約数の個数: 54

約数和(自身を含む): 56482062

約数和(自身を除く): 38463162

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 20021, 40042, 60063, 80084, 100105, 120126, 180189, 200210, 240252, 300315, 360378, 400420, 500525, 600630, 720756, 900945, 1001050, 1201260, 1501575, 1801890, 2002100, 3003150, 3603780, 4504725, 6006300, 9009450, 18018900]

約数ペア:

[(1, 18018900), (2, 9009450), (3, 6006300), (4, 4504725), (5, 3603780), (6, 3003150), (9, 2002100), (10, 1801890), (12, 1501575), (15, 1201260), (18, 1001050), (20, 900945), (25, 720756), (30, 600630), (36, 500525), (45, 400420), (50, 360378), (60, 300315), (75, 240252), (90, 200210), (100, 180189), (150, 120126), (180, 100105), (225, 80084), (300, 60063), (450, 40042), (900, 20021)]