640856448

素因数分解:

$2^7\times 3^4\times {\mathrm{113}}^1\times {\mathrm{547}}^1$

素因数の和:686

約数の個数: 160

約数和(自身を含む): 1927573560

約数和(自身を除く): 1286717112

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 113, 128, 144, 162, 192, 216, 226, 288, 324, 339, 384, 432, 452, 547, 576, 648, 678, 864, 904, 1017, 1094, 1152, 1296, 1356, 1641, 1728, 1808, 2034, 2188, 2592, 2712, 3051, 3282, 3456, 3616, 4068, 4376, 4923, 5184, 5424, 6102, 6564, 7232, 8136, 8752, 9153, 9846, 10368, 10848, 12204, 13128, 14464, 14769, 16272, 17504, 18306, 19692, 21696, 24408, 26256, 29538, 32544, 35008, 36612, 39384, 43392, 44307, 48816, 52512, 59076, 61811, 65088, 70016, 73224, 78768, 88614, 97632, 105024, 118152, 123622, 130176, 146448, 157536, 177228, 185433, 195264, 210048, 236304, 247244, 292896, 315072, 354456, 370866, 390528, 472608, 494488, 556299, 585792, 630144, 708912, 741732, 945216, 988976, 1112598, 1171584, 1417824, 1483464, 1668897, 1890432, 1977952, 2225196, 2835648, 2966928, 3337794, 3955904, 4450392, 5006691, 5671296, 5933856, 6675588, 7911808, 8900784, 10013382, 11867712, 13351176, 17801568, 20026764, 23735424, 26702352, 35603136, 40053528, 53404704, 71206272, 80107056, 106809408, 160214112, 213618816, 320428224, 640856448]

約数ペア:

[(1, 640856448), (2, 320428224), (3, 213618816), (4, 160214112), (6, 106809408), (8, 80107056), (9, 71206272), (12, 53404704), (16, 40053528), (18, 35603136), (24, 26702352), (27, 23735424), (32, 20026764), (36, 17801568), (48, 13351176), (54, 11867712), (64, 10013382), (72, 8900784), (81, 7911808), (96, 6675588), (108, 5933856), (113, 5671296), (128, 5006691), (144, 4450392), (162, 3955904), (192, 3337794), (216, 2966928), (226, 2835648), (288, 2225196), (324, 1977952), (339, 1890432), (384, 1668897), (432, 1483464), (452, 1417824), (547, 1171584), (576, 1112598), (648, 988976), (678, 945216), (864, 741732), (904, 708912), (1017, 630144), (1094, 585792), (1152, 556299), (1296, 494488), (1356, 472608), (1641, 390528), (1728, 370866), (1808, 354456), (2034, 315072), (2188, 292896), (2592, 247244), (2712, 236304), (3051, 210048), (3282, 195264), (3456, 185433), (3616, 177228), (4068, 157536), (4376, 146448), (4923, 130176), (5184, 123622), (5424, 118152), (6102, 105024), (6564, 97632), (7232, 88614), (8136, 78768), (8752, 73224), (9153, 70016), (9846, 65088), (10368, 61811), (10848, 59076), (12204, 52512), (13128, 48816), (14464, 44307), (14769, 43392), (16272, 39384), (17504, 36612), (18306, 35008), (19692, 32544), (21696, 29538), (24408, 26256)]