81504640

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{113}}^1$

素因数の和:169

約数の個数: 192

約数和(自身を含む): 238606560

約数和(自身を除く): 157101920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 64, 70, 80, 92, 98, 112, 113, 115, 128, 140, 160, 161, 184, 196, 224, 226, 230, 245, 280, 320, 322, 368, 392, 448, 452, 460, 490, 560, 565, 640, 644, 736, 784, 791, 805, 896, 904, 920, 980, 1120, 1127, 1130, 1288, 1472, 1568, 1582, 1610, 1808, 1840, 1960, 2240, 2254, 2260, 2576, 2599, 2944, 3136, 3164, 3220, 3616, 3680, 3920, 3955, 4480, 4508, 4520, 5152, 5198, 5537, 5635, 6272, 6328, 6440, 7232, 7360, 7840, 7910, 9016, 9040, 10304, 10396, 11074, 11270, 12656, 12880, 12995, 14464, 14720, 15680, 15820, 18032, 18080, 18193, 20608, 20792, 22148, 22540, 25312, 25760, 25990, 27685, 31360, 31640, 36064, 36160, 36386, 41584, 44296, 45080, 50624, 51520, 51980, 55370, 63280, 72128, 72320, 72772, 83168, 88592, 90160, 90965, 101248, 103040, 103960, 110740, 126560, 127351, 144256, 145544, 166336, 177184, 180320, 181930, 207920, 221480, 253120, 254702, 291088, 332672, 354368, 360640, 363860, 415840, 442960, 506240, 509404, 582176, 636755, 708736, 721280, 727720, 831680, 885920, 1018808, 1164352, 1273510, 1455440, 1663360, 1771840, 2037616, 2328704, 2547020, 2910880, 3543680, 4075232, 5094040, 5821760, 8150464, 10188080, 11643520, 16300928, 20376160, 40752320, 81504640]

約数ペア:

[(1, 81504640), (2, 40752320), (4, 20376160), (5, 16300928), (7, 11643520), (8, 10188080), (10, 8150464), (14, 5821760), (16, 5094040), (20, 4075232), (23, 3543680), (28, 2910880), (32, 2547020), (35, 2328704), (40, 2037616), (46, 1771840), (49, 1663360), (56, 1455440), (64, 1273510), (70, 1164352), (80, 1018808), (92, 885920), (98, 831680), (112, 727720), (113, 721280), (115, 708736), (128, 636755), (140, 582176), (160, 509404), (161, 506240), (184, 442960), (196, 415840), (224, 363860), (226, 360640), (230, 354368), (245, 332672), (280, 291088), (320, 254702), (322, 253120), (368, 221480), (392, 207920), (448, 181930), (452, 180320), (460, 177184), (490, 166336), (560, 145544), (565, 144256), (640, 127351), (644, 126560), (736, 110740), (784, 103960), (791, 103040), (805, 101248), (896, 90965), (904, 90160), (920, 88592), (980, 83168), (1120, 72772), (1127, 72320), (1130, 72128), (1288, 63280), (1472, 55370), (1568, 51980), (1582, 51520), (1610, 50624), (1808, 45080), (1840, 44296), (1960, 41584), (2240, 36386), (2254, 36160), (2260, 36064), (2576, 31640), (2599, 31360), (2944, 27685), (3136, 25990), (3164, 25760), (3220, 25312), (3616, 22540), (3680, 22148), (3920, 20792), (3955, 20608), (4480, 18193), (4508, 18080), (4520, 18032), (5152, 15820), (5198, 15680), (5537, 14720), (5635, 14464), (6272, 12995), (6328, 12880), (6440, 12656), (7232, 11270), (7360, 11074), (7840, 10396), (7910, 10304), (9016, 9040)]