256508160

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{997}}^1$

素因数の和:1088

約数の個数: 144

約数和(自身を含む): 832284096

約数和(自身を除く): 575775936

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 67, 80, 96, 120, 128, 134, 160, 192, 201, 240, 256, 268, 320, 335, 384, 402, 480, 536, 640, 670, 768, 804, 960, 997, 1005, 1072, 1280, 1340, 1608, 1920, 1994, 2010, 2144, 2680, 2991, 3216, 3840, 3988, 4020, 4288, 4985, 5360, 5982, 6432, 7976, 8040, 8576, 9970, 10720, 11964, 12864, 14955, 15952, 16080, 17152, 19940, 21440, 23928, 25728, 29910, 31904, 32160, 39880, 42880, 47856, 51456, 59820, 63808, 64320, 66799, 79760, 85760, 95712, 119640, 127616, 128640, 133598, 159520, 191424, 200397, 239280, 255232, 257280, 267196, 319040, 333995, 382848, 400794, 478560, 534392, 638080, 667990, 765696, 801588, 957120, 1001985, 1068784, 1276160, 1335980, 1603176, 1914240, 2003970, 2137568, 2671960, 3206352, 3828480, 4007940, 4275136, 5343920, 6412704, 8015880, 8550272, 10687840, 12825408, 16031760, 17100544, 21375680, 25650816, 32063520, 42751360, 51301632, 64127040, 85502720, 128254080, 256508160]

約数ペア:

[(1, 256508160), (2, 128254080), (3, 85502720), (4, 64127040), (5, 51301632), (6, 42751360), (8, 32063520), (10, 25650816), (12, 21375680), (15, 17100544), (16, 16031760), (20, 12825408), (24, 10687840), (30, 8550272), (32, 8015880), (40, 6412704), (48, 5343920), (60, 4275136), (64, 4007940), (67, 3828480), (80, 3206352), (96, 2671960), (120, 2137568), (128, 2003970), (134, 1914240), (160, 1603176), (192, 1335980), (201, 1276160), (240, 1068784), (256, 1001985), (268, 957120), (320, 801588), (335, 765696), (384, 667990), (402, 638080), (480, 534392), (536, 478560), (640, 400794), (670, 382848), (768, 333995), (804, 319040), (960, 267196), (997, 257280), (1005, 255232), (1072, 239280), (1280, 200397), (1340, 191424), (1608, 159520), (1920, 133598), (1994, 128640), (2010, 127616), (2144, 119640), (2680, 95712), (2991, 85760), (3216, 79760), (3840, 66799), (3988, 64320), (4020, 63808), (4288, 59820), (4985, 51456), (5360, 47856), (5982, 42880), (6432, 39880), (7976, 32160), (8040, 31904), (8576, 29910), (9970, 25728), (10720, 23928), (11964, 21440), (12864, 19940), (14955, 17152), (15952, 16080)]