20900831760

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{3225437}}^1$

素因数の和:3225462

約数の個数: 100

約数和(自身を含む): 72591707628

約数和(自身を除く): 51690875868

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 3225437, 6450874, 9676311, 12901748, 16127185, 19352622, 25803496, 29028933, 32254370, 38705244, 48381555, 51606992, 58057866, 64508740, 77410488, 87086799, 96763110, 116115732, 129017480, 145144665, 154820976, 174173598, 193526220, 232231464, 258034960, 261260397, 290289330, 348347196, 387052440, 435433995, 464462928, 522520794, 580578660, 696694392, 774104880, 870867990, 1045041588, 1161157320, 1306301985, 1393388784, 1741735980, 2090083176, 2322314640, 2612603970, 3483471960, 4180166352, 5225207940, 6966943920, 10450415880, 20900831760]

約数ペア:

[(1, 20900831760), (2, 10450415880), (3, 6966943920), (4, 5225207940), (5, 4180166352), (6, 3483471960), (8, 2612603970), (9, 2322314640), (10, 2090083176), (12, 1741735980), (15, 1393388784), (16, 1306301985), (18, 1161157320), (20, 1045041588), (24, 870867990), (27, 774104880), (30, 696694392), (36, 580578660), (40, 522520794), (45, 464462928), (48, 435433995), (54, 387052440), (60, 348347196), (72, 290289330), (80, 261260397), (81, 258034960), (90, 232231464), (108, 193526220), (120, 174173598), (135, 154820976), (144, 145144665), (162, 129017480), (180, 116115732), (216, 96763110), (240, 87086799), (270, 77410488), (324, 64508740), (360, 58057866), (405, 51606992), (432, 48381555), (540, 38705244), (648, 32254370), (720, 29028933), (810, 25803496), (1080, 19352622), (1296, 16127185), (1620, 12901748), (2160, 9676311), (3240, 6450874), (6480, 3225437)]