19680681440

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{358613}}^1$

素因数の和:358649

約数の個数: 96

約数和(自身を含む): 54222436800

約数和(自身を除く): 34541755360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1120, 1372, 1568, 1715, 1960, 2744, 3430, 3920, 5488, 6860, 7840, 10976, 13720, 27440, 54880, 358613, 717226, 1434452, 1793065, 2510291, 2868904, 3586130, 5020582, 5737808, 7172260, 10041164, 11475616, 12551455, 14344520, 17572037, 20082328, 25102910, 28689040, 35144074, 40164656, 50205820, 57378080, 70288148, 80329312, 87860185, 100411640, 123004259, 140576296, 175720370, 200823280, 246008518, 281152592, 351440740, 401646560, 492017036, 562305184, 615021295, 702881480, 984034072, 1230042590, 1405762960, 1968068144, 2460085180, 2811525920, 3936136288, 4920170360, 9840340720, 19680681440]

約数ペア:

[(1, 19680681440), (2, 9840340720), (4, 4920170360), (5, 3936136288), (7, 2811525920), (8, 2460085180), (10, 1968068144), (14, 1405762960), (16, 1230042590), (20, 984034072), (28, 702881480), (32, 615021295), (35, 562305184), (40, 492017036), (49, 401646560), (56, 351440740), (70, 281152592), (80, 246008518), (98, 200823280), (112, 175720370), (140, 140576296), (160, 123004259), (196, 100411640), (224, 87860185), (245, 80329312), (280, 70288148), (343, 57378080), (392, 50205820), (490, 40164656), (560, 35144074), (686, 28689040), (784, 25102910), (980, 20082328), (1120, 17572037), (1372, 14344520), (1568, 12551455), (1715, 11475616), (1960, 10041164), (2744, 7172260), (3430, 5737808), (3920, 5020582), (5488, 3586130), (6860, 2868904), (7840, 2510291), (10976, 1793065), (13720, 1434452), (27440, 717226), (54880, 358613)]