398161920

素因数分解:

$2^{11}\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{997}}^1$

素因数の和:1040

約数の個数: 192

約数和(自身を含む): 1373168160

約数和(自身を除く): 975006240

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, 997, 1024, 1040, 1248, 1280, 1536, 1560, 1664, 1920, 1994, 2048, 2080, 2496, 2560, 2991, 3072, 3120, 3328, 3840, 3988, 4160, 4985, 4992, 5120, 5982, 6144, 6240, 6656, 7680, 7976, 8320, 9970, 9984, 10240, 11964, 12480, 12961, 13312, 14955, 15360, 15952, 16640, 19940, 19968, 23928, 24960, 25922, 26624, 29910, 30720, 31904, 33280, 38883, 39880, 39936, 47856, 49920, 51844, 59820, 63808, 64805, 66560, 77766, 79760, 79872, 95712, 99840, 103688, 119640, 127616, 129610, 133120, 155532, 159520, 191424, 194415, 199680, 207376, 239280, 255232, 259220, 311064, 319040, 382848, 388830, 399360, 414752, 478560, 510464, 518440, 622128, 638080, 765696, 777660, 829504, 957120, 1020928, 1036880, 1244256, 1276160, 1531392, 1555320, 1659008, 1914240, 2041856, 2073760, 2488512, 2552320, 3062784, 3110640, 3318016, 3828480, 4147520, 4977024, 5104640, 6125568, 6221280, 6636032, 7656960, 8295040, 9954048, 10209280, 12442560, 13272064, 15313920, 16590080, 19908096, 24885120, 26544128, 30627840, 33180160, 39816192, 49770240, 66360320, 79632384, 99540480, 132720640, 199080960, 398161920]

約数ペア:

[(1, 398161920), (2, 199080960), (3, 132720640), (4, 99540480), (5, 79632384), (6, 66360320), (8, 49770240), (10, 39816192), (12, 33180160), (13, 30627840), (15, 26544128), (16, 24885120), (20, 19908096), (24, 16590080), (26, 15313920), (30, 13272064), (32, 12442560), (39, 10209280), (40, 9954048), (48, 8295040), (52, 7656960), (60, 6636032), (64, 6221280), (65, 6125568), (78, 5104640), (80, 4977024), (96, 4147520), (104, 3828480), (120, 3318016), (128, 3110640), (130, 3062784), (156, 2552320), (160, 2488512), (192, 2073760), (195, 2041856), (208, 1914240), (240, 1659008), (256, 1555320), (260, 1531392), (312, 1276160), (320, 1244256), (384, 1036880), (390, 1020928), (416, 957120), (480, 829504), (512, 777660), (520, 765696), (624, 638080), (640, 622128), (768, 518440), (780, 510464), (832, 478560), (960, 414752), (997, 399360), (1024, 388830), (1040, 382848), (1248, 319040), (1280, 311064), (1536, 259220), (1560, 255232), (1664, 239280), (1920, 207376), (1994, 199680), (2048, 194415), (2080, 191424), (2496, 159520), (2560, 155532), (2991, 133120), (3072, 129610), (3120, 127616), (3328, 119640), (3840, 103688), (3988, 99840), (4160, 95712), (4985, 79872), (4992, 79760), (5120, 77766), (5982, 66560), (6144, 64805), (6240, 63808), (6656, 59820), (7680, 51844), (7976, 49920), (8320, 47856), (9970, 39936), (9984, 39880), (10240, 38883), (11964, 33280), (12480, 31904), (12961, 30720), (13312, 29910), (14955, 26624), (15360, 25922), (15952, 24960), (16640, 23928), (19940, 19968)]