646563840

素因数分解:

$2^{11}\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1619}}^1$

素因数の和:1662

約数の個数: 192

約数和(自身を含む): 2228990400

約数和(自身を除く): 1582426560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 480, 512, 520, 624, 640, 768, 780, 832, 960, 1024, 1040, 1248, 1280, 1536, 1560, 1619, 1664, 1920, 2048, 2080, 2496, 2560, 3072, 3120, 3238, 3328, 3840, 4160, 4857, 4992, 5120, 6144, 6240, 6476, 6656, 7680, 8095, 8320, 9714, 9984, 10240, 12480, 12952, 13312, 15360, 16190, 16640, 19428, 19968, 21047, 24285, 24960, 25904, 26624, 30720, 32380, 33280, 38856, 39936, 42094, 48570, 49920, 51808, 63141, 64760, 66560, 77712, 79872, 84188, 97140, 99840, 103616, 105235, 126282, 129520, 133120, 155424, 168376, 194280, 199680, 207232, 210470, 252564, 259040, 310848, 315705, 336752, 388560, 399360, 414464, 420940, 505128, 518080, 621696, 631410, 673504, 777120, 828928, 841880, 1010256, 1036160, 1243392, 1262820, 1347008, 1554240, 1657856, 1683760, 2020512, 2072320, 2486784, 2525640, 2694016, 3108480, 3315712, 3367520, 4041024, 4144640, 4973568, 5051280, 5388032, 6216960, 6735040, 8082048, 8289280, 9947136, 10102560, 10776064, 12433920, 13470080, 16164096, 16578560, 20205120, 21552128, 24867840, 26940160, 32328192, 40410240, 43104256, 49735680, 53880320, 64656384, 80820480, 107760640, 129312768, 161640960, 215521280, 323281920, 646563840]

約数ペア:

[(1, 646563840), (2, 323281920), (3, 215521280), (4, 161640960), (5, 129312768), (6, 107760640), (8, 80820480), (10, 64656384), (12, 53880320), (13, 49735680), (15, 43104256), (16, 40410240), (20, 32328192), (24, 26940160), (26, 24867840), (30, 21552128), (32, 20205120), (39, 16578560), (40, 16164096), (48, 13470080), (52, 12433920), (60, 10776064), (64, 10102560), (65, 9947136), (78, 8289280), (80, 8082048), (96, 6735040), (104, 6216960), (120, 5388032), (128, 5051280), (130, 4973568), (156, 4144640), (160, 4041024), (192, 3367520), (195, 3315712), (208, 3108480), (240, 2694016), (256, 2525640), (260, 2486784), (312, 2072320), (320, 2020512), (384, 1683760), (390, 1657856), (416, 1554240), (480, 1347008), (512, 1262820), (520, 1243392), (624, 1036160), (640, 1010256), (768, 841880), (780, 828928), (832, 777120), (960, 673504), (1024, 631410), (1040, 621696), (1248, 518080), (1280, 505128), (1536, 420940), (1560, 414464), (1619, 399360), (1664, 388560), (1920, 336752), (2048, 315705), (2080, 310848), (2496, 259040), (2560, 252564), (3072, 210470), (3120, 207232), (3238, 199680), (3328, 194280), (3840, 168376), (4160, 155424), (4857, 133120), (4992, 129520), (5120, 126282), (6144, 105235), (6240, 103616), (6476, 99840), (6656, 97140), (7680, 84188), (8095, 79872), (8320, 77712), (9714, 66560), (9984, 64760), (10240, 63141), (12480, 51808), (12952, 49920), (13312, 48570), (15360, 42094), (16190, 39936), (16640, 38856), (19428, 33280), (19968, 32380), (21047, 30720), (24285, 26624), (24960, 25904)]