20497320

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{18979}}^1$

素因数の和:18999

約数の個数: 64

約数和(自身を含む): 68328000

約数和(自身を除く): 47830680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 18979, 37958, 56937, 75916, 94895, 113874, 151832, 170811, 189790, 227748, 284685, 341622, 379580, 455496, 512433, 569370, 683244, 759160, 854055, 1024866, 1138740, 1366488, 1708110, 2049732, 2277480, 2562165, 3416220, 4099464, 5124330, 6832440, 10248660, 20497320]

約数ペア:

[(1, 20497320), (2, 10248660), (3, 6832440), (4, 5124330), (5, 4099464), (6, 3416220), (8, 2562165), (9, 2277480), (10, 2049732), (12, 1708110), (15, 1366488), (18, 1138740), (20, 1024866), (24, 854055), (27, 759160), (30, 683244), (36, 569370), (40, 512433), (45, 455496), (54, 379580), (60, 341622), (72, 284685), (90, 227748), (108, 189790), (120, 170811), (135, 151832), (180, 113874), (216, 94895), (270, 75916), (360, 56937), (540, 37958), (1080, 18979)]