255997440

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:341

約数の個数: 240

約数和(自身を含む): 911566656

約数和(自身を除く): 655569216

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 64, 72, 80, 82, 90, 96, 120, 123, 128, 144, 160, 164, 180, 192, 205, 240, 246, 256, 271, 288, 320, 328, 360, 369, 384, 410, 480, 492, 512, 542, 576, 615, 640, 656, 720, 738, 768, 813, 820, 960, 984, 1084, 1152, 1230, 1280, 1312, 1355, 1440, 1476, 1536, 1626, 1640, 1845, 1920, 1968, 2168, 2304, 2439, 2460, 2560, 2624, 2710, 2880, 2952, 3252, 3280, 3690, 3840, 3936, 4065, 4336, 4608, 4878, 4920, 5248, 5420, 5760, 5904, 6504, 6560, 7380, 7680, 7872, 8130, 8672, 9756, 9840, 10496, 10840, 11111, 11520, 11808, 12195, 13008, 13120, 14760, 15744, 16260, 17344, 19512, 19680, 20992, 21680, 22222, 23040, 23616, 24390, 26016, 26240, 29520, 31488, 32520, 33333, 34688, 39024, 39360, 43360, 44444, 47232, 48780, 52032, 52480, 55555, 59040, 62976, 65040, 66666, 69376, 78048, 78720, 86720, 88888, 94464, 97560, 99999, 104064, 104960, 111110, 118080, 130080, 133332, 138752, 156096, 157440, 166665, 173440, 177776, 188928, 195120, 199998, 208128, 222220, 236160, 260160, 266664, 312192, 314880, 333330, 346880, 355552, 390240, 399996, 416256, 444440, 472320, 499995, 520320, 533328, 624384, 666660, 693760, 711104, 780480, 799992, 888880, 944640, 999990, 1040640, 1066656, 1248768, 1333320, 1422208, 1560960, 1599984, 1777760, 1999980, 2081280, 2133312, 2666640, 2844416, 3121920, 3199968, 3555520, 3999960, 4266624, 5333280, 5688832, 6243840, 6399936, 7111040, 7999920, 8533248, 10666560, 12799872, 14222080, 15999840, 17066496, 21333120, 25599744, 28444160, 31999680, 42666240, 51199488, 63999360, 85332480, 127998720, 255997440]

約数ペア:

[(1, 255997440), (2, 127998720), (3, 85332480), (4, 63999360), (5, 51199488), (6, 42666240), (8, 31999680), (9, 28444160), (10, 25599744), (12, 21333120), (15, 17066496), (16, 15999840), (18, 14222080), (20, 12799872), (24, 10666560), (30, 8533248), (32, 7999920), (36, 7111040), (40, 6399936), (41, 6243840), (45, 5688832), (48, 5333280), (60, 4266624), (64, 3999960), (72, 3555520), (80, 3199968), (82, 3121920), (90, 2844416), (96, 2666640), (120, 2133312), (123, 2081280), (128, 1999980), (144, 1777760), (160, 1599984), (164, 1560960), (180, 1422208), (192, 1333320), (205, 1248768), (240, 1066656), (246, 1040640), (256, 999990), (271, 944640), (288, 888880), (320, 799992), (328, 780480), (360, 711104), (369, 693760), (384, 666660), (410, 624384), (480, 533328), (492, 520320), (512, 499995), (542, 472320), (576, 444440), (615, 416256), (640, 399996), (656, 390240), (720, 355552), (738, 346880), (768, 333330), (813, 314880), (820, 312192), (960, 266664), (984, 260160), (1084, 236160), (1152, 222220), (1230, 208128), (1280, 199998), (1312, 195120), (1355, 188928), (1440, 177776), (1476, 173440), (1536, 166665), (1626, 157440), (1640, 156096), (1845, 138752), (1920, 133332), (1968, 130080), (2168, 118080), (2304, 111110), (2439, 104960), (2460, 104064), (2560, 99999), (2624, 97560), (2710, 94464), (2880, 88888), (2952, 86720), (3252, 78720), (3280, 78048), (3690, 69376), (3840, 66666), (3936, 65040), (4065, 62976), (4336, 59040), (4608, 55555), (4878, 52480), (4920, 52032), (5248, 48780), (5420, 47232), (5760, 44444), (5904, 43360), (6504, 39360), (6560, 39024), (7380, 34688), (7680, 33333), (7872, 32520), (8130, 31488), (8672, 29520), (9756, 26240), (9840, 26016), (10496, 24390), (10840, 23616), (11111, 23040), (11520, 22222), (11808, 21680), (12195, 20992), (13008, 19680), (13120, 19512), (14760, 17344), (15744, 16260)]