18009040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{32159}}^1$

素因数の和:32179

約数の個数: 40

約数和(自身を含む): 47854080

約数和(自身を除く): 29845040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 32159, 64318, 128636, 160795, 225113, 257272, 321590, 450226, 514544, 643180, 900452, 1125565, 1286360, 1800904, 2251130, 2572720, 3601808, 4502260, 9004520, 18009040]

約数ペア:

[(1, 18009040), (2, 9004520), (4, 4502260), (5, 3601808), (7, 2572720), (8, 2251130), (10, 1800904), (14, 1286360), (16, 1125565), (20, 900452), (28, 643180), (35, 514544), (40, 450226), (56, 321590), (70, 257272), (80, 225113), (112, 160795), (140, 128636), (280, 64318), (560, 32159)]