255985920

素因数分解:

$2^8\times 3^5\times 5^1\times {\mathrm{823}}^1$

素因数の和:859

約数の個数: 216

約数和(自身を含む): 919603776

約数和(自身を除く): 663617856

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 243, 256, 270, 288, 320, 324, 360, 384, 405, 432, 480, 486, 540, 576, 640, 648, 720, 768, 810, 823, 864, 960, 972, 1080, 1152, 1215, 1280, 1296, 1440, 1620, 1646, 1728, 1920, 1944, 2160, 2304, 2430, 2469, 2592, 2880, 3240, 3292, 3456, 3840, 3888, 4115, 4320, 4860, 4938, 5184, 5760, 6480, 6584, 6912, 7407, 7776, 8230, 8640, 9720, 9876, 10368, 11520, 12345, 12960, 13168, 14814, 15552, 16460, 17280, 19440, 19752, 20736, 22221, 24690, 25920, 26336, 29628, 31104, 32920, 34560, 37035, 38880, 39504, 44442, 49380, 51840, 52672, 59256, 62208, 65840, 66663, 74070, 77760, 79008, 88884, 98760, 103680, 105344, 111105, 118512, 131680, 133326, 148140, 155520, 158016, 177768, 197520, 199989, 210688, 222210, 237024, 263360, 266652, 296280, 311040, 316032, 333315, 355536, 395040, 399978, 444420, 474048, 526720, 533304, 592560, 632064, 666630, 711072, 790080, 799956, 888840, 948096, 999945, 1053440, 1066608, 1185120, 1333260, 1422144, 1580160, 1599912, 1777680, 1896192, 1999890, 2133216, 2370240, 2666520, 2844288, 3160320, 3199824, 3555360, 3999780, 4266432, 4740480, 5333040, 5688576, 6399648, 7110720, 7999560, 8532864, 9480960, 10666080, 12799296, 14221440, 15999120, 17065728, 21332160, 25598592, 28442880, 31998240, 42664320, 51197184, 63996480, 85328640, 127992960, 255985920]

約数ペア:

[(1, 255985920), (2, 127992960), (3, 85328640), (4, 63996480), (5, 51197184), (6, 42664320), (8, 31998240), (9, 28442880), (10, 25598592), (12, 21332160), (15, 17065728), (16, 15999120), (18, 14221440), (20, 12799296), (24, 10666080), (27, 9480960), (30, 8532864), (32, 7999560), (36, 7110720), (40, 6399648), (45, 5688576), (48, 5333040), (54, 4740480), (60, 4266432), (64, 3999780), (72, 3555360), (80, 3199824), (81, 3160320), (90, 2844288), (96, 2666520), (108, 2370240), (120, 2133216), (128, 1999890), (135, 1896192), (144, 1777680), (160, 1599912), (162, 1580160), (180, 1422144), (192, 1333260), (216, 1185120), (240, 1066608), (243, 1053440), (256, 999945), (270, 948096), (288, 888840), (320, 799956), (324, 790080), (360, 711072), (384, 666630), (405, 632064), (432, 592560), (480, 533304), (486, 526720), (540, 474048), (576, 444420), (640, 399978), (648, 395040), (720, 355536), (768, 333315), (810, 316032), (823, 311040), (864, 296280), (960, 266652), (972, 263360), (1080, 237024), (1152, 222210), (1215, 210688), (1280, 199989), (1296, 197520), (1440, 177768), (1620, 158016), (1646, 155520), (1728, 148140), (1920, 133326), (1944, 131680), (2160, 118512), (2304, 111105), (2430, 105344), (2469, 103680), (2592, 98760), (2880, 88884), (3240, 79008), (3292, 77760), (3456, 74070), (3840, 66663), (3888, 65840), (4115, 62208), (4320, 59256), (4860, 52672), (4938, 51840), (5184, 49380), (5760, 44442), (6480, 39504), (6584, 38880), (6912, 37035), (7407, 34560), (7776, 32920), (8230, 31104), (8640, 29628), (9720, 26336), (9876, 25920), (10368, 24690), (11520, 22221), (12345, 20736), (12960, 19752), (13168, 19440), (14814, 17280), (15552, 16460)]