20988360

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{337}}^1$

素因数の和:527

約数の個数: 96

約数和(自身を含む): 68810040

約数和(自身を除く): 47821680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 173, 180, 337, 346, 360, 519, 674, 692, 865, 1011, 1038, 1348, 1384, 1557, 1685, 1730, 2022, 2076, 2595, 2696, 3033, 3114, 3370, 3460, 4044, 4152, 5055, 5190, 6066, 6228, 6740, 6920, 7785, 8088, 10110, 10380, 12132, 12456, 13480, 15165, 15570, 20220, 20760, 24264, 30330, 31140, 40440, 58301, 60660, 62280, 116602, 121320, 174903, 233204, 291505, 349806, 466408, 524709, 583010, 699612, 874515, 1049418, 1166020, 1399224, 1749030, 2098836, 2332040, 2623545, 3498060, 4197672, 5247090, 6996120, 10494180, 20988360]

約数ペア:

[(1, 20988360), (2, 10494180), (3, 6996120), (4, 5247090), (5, 4197672), (6, 3498060), (8, 2623545), (9, 2332040), (10, 2098836), (12, 1749030), (15, 1399224), (18, 1166020), (20, 1049418), (24, 874515), (30, 699612), (36, 583010), (40, 524709), (45, 466408), (60, 349806), (72, 291505), (90, 233204), (120, 174903), (173, 121320), (180, 116602), (337, 62280), (346, 60660), (360, 58301), (519, 40440), (674, 31140), (692, 30330), (865, 24264), (1011, 20760), (1038, 20220), (1348, 15570), (1384, 15165), (1557, 13480), (1685, 12456), (1730, 12132), (2022, 10380), (2076, 10110), (2595, 8088), (2696, 7785), (3033, 6920), (3114, 6740), (3370, 6228), (3460, 6066), (4044, 5190), (4152, 5055)]