81989280

素因数分解:

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

素因数の和:19003

約数の個数: 96

約数和(自身を含む): 286977600

約数和(自身を除く): 204988320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 432, 480, 540, 720, 864, 1080, 1440, 2160, 4320, 18979, 37958, 56937, 75916, 94895, 113874, 151832, 170811, 189790, 227748, 284685, 303664, 341622, 379580, 455496, 512433, 569370, 607328, 683244, 759160, 854055, 910992, 1024866, 1138740, 1366488, 1518320, 1708110, 1821984, 2049732, 2277480, 2562165, 2732976, 3036640, 3416220, 4099464, 4554960, 5124330, 5465952, 6832440, 8198928, 9109920, 10248660, 13664880, 16397856, 20497320, 27329760, 40994640, 81989280]

約数ペア:

[(1, 81989280), (2, 40994640), (3, 27329760), (4, 20497320), (5, 16397856), (6, 13664880), (8, 10248660), (9, 9109920), (10, 8198928), (12, 6832440), (15, 5465952), (16, 5124330), (18, 4554960), (20, 4099464), (24, 3416220), (27, 3036640), (30, 2732976), (32, 2562165), (36, 2277480), (40, 2049732), (45, 1821984), (48, 1708110), (54, 1518320), (60, 1366488), (72, 1138740), (80, 1024866), (90, 910992), (96, 854055), (108, 759160), (120, 683244), (135, 607328), (144, 569370), (160, 512433), (180, 455496), (216, 379580), (240, 341622), (270, 303664), (288, 284685), (360, 227748), (432, 189790), (480, 170811), (540, 151832), (720, 113874), (864, 94895), (1080, 75916), (1440, 56937), (2160, 37958), (4320, 18979)]