81669280

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{947}}^1$

素因数の和:987

約数の個数: 144

約数和(自身を含む): 245107296

約数和(自身を除く): 163438016

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 160, 176, 196, 220, 224, 245, 280, 308, 352, 385, 392, 440, 490, 539, 560, 616, 770, 784, 880, 947, 980, 1078, 1120, 1232, 1540, 1568, 1760, 1894, 1960, 2156, 2464, 2695, 3080, 3788, 3920, 4312, 4735, 5390, 6160, 6629, 7576, 7840, 8624, 9470, 10417, 10780, 12320, 13258, 15152, 17248, 18940, 20834, 21560, 26516, 30304, 33145, 37880, 41668, 43120, 46403, 52085, 53032, 66290, 72919, 75760, 83336, 86240, 92806, 104170, 106064, 132580, 145838, 151520, 166672, 185612, 208340, 212128, 232015, 265160, 291676, 333344, 364595, 371224, 416680, 464030, 510433, 530320, 583352, 729190, 742448, 833360, 928060, 1020866, 1060640, 1166704, 1458380, 1484896, 1666720, 1856120, 2041732, 2333408, 2552165, 2916760, 3712240, 4083464, 5104330, 5833520, 7424480, 8166928, 10208660, 11667040, 16333856, 20417320, 40834640, 81669280]

約数ペア:

[(1, 81669280), (2, 40834640), (4, 20417320), (5, 16333856), (7, 11667040), (8, 10208660), (10, 8166928), (11, 7424480), (14, 5833520), (16, 5104330), (20, 4083464), (22, 3712240), (28, 2916760), (32, 2552165), (35, 2333408), (40, 2041732), (44, 1856120), (49, 1666720), (55, 1484896), (56, 1458380), (70, 1166704), (77, 1060640), (80, 1020866), (88, 928060), (98, 833360), (110, 742448), (112, 729190), (140, 583352), (154, 530320), (160, 510433), (176, 464030), (196, 416680), (220, 371224), (224, 364595), (245, 333344), (280, 291676), (308, 265160), (352, 232015), (385, 212128), (392, 208340), (440, 185612), (490, 166672), (539, 151520), (560, 145838), (616, 132580), (770, 106064), (784, 104170), (880, 92806), (947, 86240), (980, 83336), (1078, 75760), (1120, 72919), (1232, 66290), (1540, 53032), (1568, 52085), (1760, 46403), (1894, 43120), (1960, 41668), (2156, 37880), (2464, 33145), (2695, 30304), (3080, 26516), (3788, 21560), (3920, 20834), (4312, 18940), (4735, 17248), (5390, 15152), (6160, 13258), (6629, 12320), (7576, 10780), (7840, 10417), (8624, 9470)]