256260480

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{829}}^1$

素因数の和:881

約数の個数: 256

約数和(自身を含む): 975283200

約数和(自身を除く): 719022720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 32, 35, 40, 42, 46, 48, 56, 60, 64, 69, 70, 80, 84, 92, 96, 105, 112, 115, 120, 128, 138, 140, 160, 161, 168, 184, 192, 210, 224, 230, 240, 276, 280, 320, 322, 336, 345, 368, 384, 420, 448, 460, 480, 483, 552, 560, 640, 644, 672, 690, 736, 805, 829, 840, 896, 920, 960, 966, 1104, 1120, 1288, 1344, 1380, 1472, 1610, 1658, 1680, 1840, 1920, 1932, 2208, 2240, 2415, 2487, 2576, 2688, 2760, 2944, 3220, 3316, 3360, 3680, 3864, 4145, 4416, 4480, 4830, 4974, 5152, 5520, 5803, 6440, 6632, 6720, 7360, 7728, 8290, 8832, 9660, 9948, 10304, 11040, 11606, 12435, 12880, 13264, 13440, 14720, 15456, 16580, 17409, 19067, 19320, 19896, 20608, 22080, 23212, 24870, 25760, 26528, 29015, 30912, 33160, 34818, 38134, 38640, 39792, 44160, 46424, 49740, 51520, 53056, 57201, 58030, 61824, 66320, 69636, 76268, 77280, 79584, 87045, 92848, 95335, 99480, 103040, 106112, 114402, 116060, 132640, 133469, 139272, 152536, 154560, 159168, 174090, 185696, 190670, 198960, 228804, 232120, 265280, 266938, 278544, 286005, 305072, 309120, 318336, 348180, 371392, 381340, 397920, 400407, 457608, 464240, 530560, 533876, 557088, 572010, 610144, 667345, 696360, 742784, 762680, 795840, 800814, 915216, 928480, 1067752, 1114176, 1144020, 1220288, 1334690, 1392720, 1525360, 1591680, 1601628, 1830432, 1856960, 2002035, 2135504, 2228352, 2288040, 2440576, 2669380, 2785440, 3050720, 3203256, 3660864, 3713920, 4004070, 4271008, 4576080, 5338760, 5570880, 6101440, 6406512, 7321728, 8008140, 8542016, 9152160, 10677520, 11141760, 12202880, 12813024, 16016280, 17084032, 18304320, 21355040, 25626048, 32032560, 36608640, 42710080, 51252096, 64065120, 85420160, 128130240, 256260480]

約数ペア:

[(1, 256260480), (2, 128130240), (3, 85420160), (4, 64065120), (5, 51252096), (6, 42710080), (7, 36608640), (8, 32032560), (10, 25626048), (12, 21355040), (14, 18304320), (15, 17084032), (16, 16016280), (20, 12813024), (21, 12202880), (23, 11141760), (24, 10677520), (28, 9152160), (30, 8542016), (32, 8008140), (35, 7321728), (40, 6406512), (42, 6101440), (46, 5570880), (48, 5338760), (56, 4576080), (60, 4271008), (64, 4004070), (69, 3713920), (70, 3660864), (80, 3203256), (84, 3050720), (92, 2785440), (96, 2669380), (105, 2440576), (112, 2288040), (115, 2228352), (120, 2135504), (128, 2002035), (138, 1856960), (140, 1830432), (160, 1601628), (161, 1591680), (168, 1525360), (184, 1392720), (192, 1334690), (210, 1220288), (224, 1144020), (230, 1114176), (240, 1067752), (276, 928480), (280, 915216), (320, 800814), (322, 795840), (336, 762680), (345, 742784), (368, 696360), (384, 667345), (420, 610144), (448, 572010), (460, 557088), (480, 533876), (483, 530560), (552, 464240), (560, 457608), (640, 400407), (644, 397920), (672, 381340), (690, 371392), (736, 348180), (805, 318336), (829, 309120), (840, 305072), (896, 286005), (920, 278544), (960, 266938), (966, 265280), (1104, 232120), (1120, 228804), (1288, 198960), (1344, 190670), (1380, 185696), (1472, 174090), (1610, 159168), (1658, 154560), (1680, 152536), (1840, 139272), (1920, 133469), (1932, 132640), (2208, 116060), (2240, 114402), (2415, 106112), (2487, 103040), (2576, 99480), (2688, 95335), (2760, 92848), (2944, 87045), (3220, 79584), (3316, 77280), (3360, 76268), (3680, 69636), (3864, 66320), (4145, 61824), (4416, 58030), (4480, 57201), (4830, 53056), (4974, 51520), (5152, 49740), (5520, 46424), (5803, 44160), (6440, 39792), (6632, 38640), (6720, 38134), (7360, 34818), (7728, 33160), (8290, 30912), (8832, 29015), (9660, 26528), (9948, 25760), (10304, 24870), (11040, 23212), (11606, 22080), (12435, 20608), (12880, 19896), (13264, 19320), (13440, 19067), (14720, 17409), (15456, 16580)]