64880640

素因数分解:

$2^{17}\times 3^2\times 5^1\times {\mathrm{11}}^1$

素因数の和:56

約数の個数: 216

約数和(自身を含む): 245365848

約数和(自身を除く): 180485208

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 128, 132, 144, 160, 165, 176, 180, 192, 198, 220, 240, 256, 264, 288, 320, 330, 352, 360, 384, 396, 440, 480, 495, 512, 528, 576, 640, 660, 704, 720, 768, 792, 880, 960, 990, 1024, 1056, 1152, 1280, 1320, 1408, 1440, 1536, 1584, 1760, 1920, 1980, 2048, 2112, 2304, 2560, 2640, 2816, 2880, 3072, 3168, 3520, 3840, 3960, 4096, 4224, 4608, 5120, 5280, 5632, 5760, 6144, 6336, 7040, 7680, 7920, 8192, 8448, 9216, 10240, 10560, 11264, 11520, 12288, 12672, 14080, 15360, 15840, 16384, 16896, 18432, 20480, 21120, 22528, 23040, 24576, 25344, 28160, 30720, 31680, 32768, 33792, 36864, 40960, 42240, 45056, 46080, 49152, 50688, 56320, 61440, 63360, 65536, 67584, 73728, 81920, 84480, 90112, 92160, 98304, 101376, 112640, 122880, 126720, 131072, 135168, 147456, 163840, 168960, 180224, 184320, 196608, 202752, 225280, 245760, 253440, 270336, 294912, 327680, 337920, 360448, 368640, 393216, 405504, 450560, 491520, 506880, 540672, 589824, 655360, 675840, 720896, 737280, 811008, 901120, 983040, 1013760, 1081344, 1179648, 1351680, 1441792, 1474560, 1622016, 1802240, 1966080, 2027520, 2162688, 2703360, 2949120, 3244032, 3604480, 4055040, 4325376, 5406720, 5898240, 6488064, 7208960, 8110080, 10813440, 12976128, 16220160, 21626880, 32440320, 64880640]

約数ペア:

[(1, 64880640), (2, 32440320), (3, 21626880), (4, 16220160), (5, 12976128), (6, 10813440), (8, 8110080), (9, 7208960), (10, 6488064), (11, 5898240), (12, 5406720), (15, 4325376), (16, 4055040), (18, 3604480), (20, 3244032), (22, 2949120), (24, 2703360), (30, 2162688), (32, 2027520), (33, 1966080), (36, 1802240), (40, 1622016), (44, 1474560), (45, 1441792), (48, 1351680), (55, 1179648), (60, 1081344), (64, 1013760), (66, 983040), (72, 901120), (80, 811008), (88, 737280), (90, 720896), (96, 675840), (99, 655360), (110, 589824), (120, 540672), (128, 506880), (132, 491520), (144, 450560), (160, 405504), (165, 393216), (176, 368640), (180, 360448), (192, 337920), (198, 327680), (220, 294912), (240, 270336), (256, 253440), (264, 245760), (288, 225280), (320, 202752), (330, 196608), (352, 184320), (360, 180224), (384, 168960), (396, 163840), (440, 147456), (480, 135168), (495, 131072), (512, 126720), (528, 122880), (576, 112640), (640, 101376), (660, 98304), (704, 92160), (720, 90112), (768, 84480), (792, 81920), (880, 73728), (960, 67584), (990, 65536), (1024, 63360), (1056, 61440), (1152, 56320), (1280, 50688), (1320, 49152), (1408, 46080), (1440, 45056), (1536, 42240), (1584, 40960), (1760, 36864), (1920, 33792), (1980, 32768), (2048, 31680), (2112, 30720), (2304, 28160), (2560, 25344), (2640, 24576), (2816, 23040), (2880, 22528), (3072, 21120), (3168, 20480), (3520, 18432), (3840, 16896), (3960, 16384), (4096, 15840), (4224, 15360), (4608, 14080), (5120, 12672), (5280, 12288), (5632, 11520), (5760, 11264), (6144, 10560), (6336, 10240), (7040, 9216), (7680, 8448), (7920, 8192)]