261294720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:203

約数の個数: 256

約数和(自身を含む): 892442880

約数和(自身を除く): 631148160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 61, 64, 69, 80, 92, 96, 97, 115, 120, 122, 128, 138, 160, 183, 184, 192, 194, 230, 240, 244, 276, 291, 305, 320, 345, 366, 368, 384, 388, 460, 480, 485, 488, 552, 582, 610, 640, 690, 732, 736, 776, 915, 920, 960, 970, 976, 1104, 1164, 1220, 1380, 1403, 1455, 1464, 1472, 1552, 1830, 1840, 1920, 1940, 1952, 2208, 2231, 2328, 2440, 2760, 2806, 2910, 2928, 2944, 3104, 3660, 3680, 3880, 3904, 4209, 4416, 4462, 4656, 4880, 5520, 5612, 5820, 5856, 5917, 6208, 6693, 7015, 7320, 7360, 7760, 7808, 8418, 8832, 8924, 9312, 9760, 11040, 11155, 11224, 11640, 11712, 11834, 12416, 13386, 14030, 14640, 14720, 15520, 16836, 17751, 17848, 18624, 19520, 21045, 22080, 22310, 22448, 23280, 23424, 23668, 26772, 28060, 29280, 29585, 31040, 33465, 33672, 35502, 35696, 37248, 39040, 42090, 44160, 44620, 44896, 46560, 47336, 53544, 56120, 58560, 59170, 62080, 66930, 67344, 71004, 71392, 84180, 88755, 89240, 89792, 93120, 94672, 107088, 112240, 117120, 118340, 133860, 134688, 136091, 142008, 142784, 168360, 177510, 178480, 179584, 186240, 189344, 214176, 224480, 236680, 267720, 269376, 272182, 284016, 285568, 336720, 355020, 356960, 378688, 408273, 428352, 448960, 473360, 535440, 538752, 544364, 568032, 673440, 680455, 710040, 713920, 757376, 816546, 856704, 897920, 946720, 1070880, 1088728, 1136064, 1346880, 1360910, 1420080, 1427840, 1633092, 1893440, 2041365, 2141760, 2177456, 2272128, 2693760, 2721820, 2840160, 3266184, 3786880, 4082730, 4283520, 4354912, 5443640, 5680320, 6532368, 8165460, 8709824, 10887280, 11360640, 13064736, 16330920, 17419648, 21774560, 26129472, 32661840, 43549120, 52258944, 65323680, 87098240, 130647360, 261294720]

約数ペア:

[(1, 261294720), (2, 130647360), (3, 87098240), (4, 65323680), (5, 52258944), (6, 43549120), (8, 32661840), (10, 26129472), (12, 21774560), (15, 17419648), (16, 16330920), (20, 13064736), (23, 11360640), (24, 10887280), (30, 8709824), (32, 8165460), (40, 6532368), (46, 5680320), (48, 5443640), (60, 4354912), (61, 4283520), (64, 4082730), (69, 3786880), (80, 3266184), (92, 2840160), (96, 2721820), (97, 2693760), (115, 2272128), (120, 2177456), (122, 2141760), (128, 2041365), (138, 1893440), (160, 1633092), (183, 1427840), (184, 1420080), (192, 1360910), (194, 1346880), (230, 1136064), (240, 1088728), (244, 1070880), (276, 946720), (291, 897920), (305, 856704), (320, 816546), (345, 757376), (366, 713920), (368, 710040), (384, 680455), (388, 673440), (460, 568032), (480, 544364), (485, 538752), (488, 535440), (552, 473360), (582, 448960), (610, 428352), (640, 408273), (690, 378688), (732, 356960), (736, 355020), (776, 336720), (915, 285568), (920, 284016), (960, 272182), (970, 269376), (976, 267720), (1104, 236680), (1164, 224480), (1220, 214176), (1380, 189344), (1403, 186240), (1455, 179584), (1464, 178480), (1472, 177510), (1552, 168360), (1830, 142784), (1840, 142008), (1920, 136091), (1940, 134688), (1952, 133860), (2208, 118340), (2231, 117120), (2328, 112240), (2440, 107088), (2760, 94672), (2806, 93120), (2910, 89792), (2928, 89240), (2944, 88755), (3104, 84180), (3660, 71392), (3680, 71004), (3880, 67344), (3904, 66930), (4209, 62080), (4416, 59170), (4462, 58560), (4656, 56120), (4880, 53544), (5520, 47336), (5612, 46560), (5820, 44896), (5856, 44620), (5917, 44160), (6208, 42090), (6693, 39040), (7015, 37248), (7320, 35696), (7360, 35502), (7760, 33672), (7808, 33465), (8418, 31040), (8832, 29585), (8924, 29280), (9312, 28060), (9760, 26772), (11040, 23668), (11155, 23424), (11224, 23280), (11640, 22448), (11712, 22310), (11834, 22080), (12416, 21045), (13386, 19520), (14030, 18624), (14640, 17848), (14720, 17751), (15520, 16836)]