640962560

素因数分解:

$2^{12}\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1$

素因数の和:316

約数の個数: 208

約数和(自身を含む): 1868334336

約数和(自身を除く): 1227371776

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 64, 68, 70, 80, 85, 112, 119, 128, 136, 140, 160, 170, 224, 238, 256, 263, 272, 280, 320, 340, 448, 476, 512, 526, 544, 560, 595, 640, 680, 896, 952, 1024, 1052, 1088, 1120, 1190, 1280, 1315, 1360, 1792, 1841, 1904, 2048, 2104, 2176, 2240, 2380, 2560, 2630, 2720, 3584, 3682, 3808, 4096, 4208, 4352, 4471, 4480, 4760, 5120, 5260, 5440, 7168, 7364, 7616, 8416, 8704, 8942, 8960, 9205, 9520, 10240, 10520, 10880, 14336, 14728, 15232, 16832, 17408, 17884, 17920, 18410, 19040, 20480, 21040, 21760, 22355, 28672, 29456, 30464, 31297, 33664, 34816, 35768, 35840, 36820, 38080, 42080, 43520, 44710, 58912, 60928, 62594, 67328, 69632, 71536, 71680, 73640, 76160, 84160, 87040, 89420, 117824, 121856, 125188, 134656, 143072, 143360, 147280, 152320, 156485, 168320, 174080, 178840, 235648, 243712, 250376, 269312, 286144, 294560, 304640, 312970, 336640, 348160, 357680, 471296, 487424, 500752, 538624, 572288, 589120, 609280, 625940, 673280, 715360, 942592, 1001504, 1077248, 1144576, 1178240, 1218560, 1251880, 1346560, 1430720, 1885184, 2003008, 2289152, 2356480, 2437120, 2503760, 2693120, 2861440, 3770368, 4006016, 4578304, 4712960, 5007520, 5386240, 5722880, 7540736, 8012032, 9156608, 9425920, 10015040, 11445760, 16024064, 18313216, 18851840, 20030080, 22891520, 32048128, 37703680, 40060160, 45783040, 64096256, 80120320, 91566080, 128192512, 160240640, 320481280, 640962560]

約数ペア:

[(1, 640962560), (2, 320481280), (4, 160240640), (5, 128192512), (7, 91566080), (8, 80120320), (10, 64096256), (14, 45783040), (16, 40060160), (17, 37703680), (20, 32048128), (28, 22891520), (32, 20030080), (34, 18851840), (35, 18313216), (40, 16024064), (56, 11445760), (64, 10015040), (68, 9425920), (70, 9156608), (80, 8012032), (85, 7540736), (112, 5722880), (119, 5386240), (128, 5007520), (136, 4712960), (140, 4578304), (160, 4006016), (170, 3770368), (224, 2861440), (238, 2693120), (256, 2503760), (263, 2437120), (272, 2356480), (280, 2289152), (320, 2003008), (340, 1885184), (448, 1430720), (476, 1346560), (512, 1251880), (526, 1218560), (544, 1178240), (560, 1144576), (595, 1077248), (640, 1001504), (680, 942592), (896, 715360), (952, 673280), (1024, 625940), (1052, 609280), (1088, 589120), (1120, 572288), (1190, 538624), (1280, 500752), (1315, 487424), (1360, 471296), (1792, 357680), (1841, 348160), (1904, 336640), (2048, 312970), (2104, 304640), (2176, 294560), (2240, 286144), (2380, 269312), (2560, 250376), (2630, 243712), (2720, 235648), (3584, 178840), (3682, 174080), (3808, 168320), (4096, 156485), (4208, 152320), (4352, 147280), (4471, 143360), (4480, 143072), (4760, 134656), (5120, 125188), (5260, 121856), (5440, 117824), (7168, 89420), (7364, 87040), (7616, 84160), (8416, 76160), (8704, 73640), (8942, 71680), (8960, 71536), (9205, 69632), (9520, 67328), (10240, 62594), (10520, 60928), (10880, 58912), (14336, 44710), (14728, 43520), (15232, 42080), (16832, 38080), (17408, 36820), (17884, 35840), (17920, 35768), (18410, 34816), (19040, 33664), (20480, 31297), (21040, 30464), (21760, 29456), (22355, 28672)]