256751040

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2939}}^1$

素因数の和:2979

約数の個数: 224

約数和(自身を含む): 1003645440

約数和(自身を除く): 746894400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 52, 56, 60, 64, 65, 70, 78, 80, 84, 91, 96, 104, 105, 112, 120, 130, 140, 156, 160, 168, 182, 192, 195, 208, 210, 224, 240, 260, 273, 280, 312, 320, 336, 364, 390, 416, 420, 448, 455, 480, 520, 546, 560, 624, 672, 728, 780, 832, 840, 910, 960, 1040, 1092, 1120, 1248, 1344, 1365, 1456, 1560, 1680, 1820, 2080, 2184, 2240, 2496, 2730, 2912, 2939, 3120, 3360, 3640, 4160, 4368, 5460, 5824, 5878, 6240, 6720, 7280, 8736, 8817, 10920, 11756, 12480, 14560, 14695, 17472, 17634, 20573, 21840, 23512, 29120, 29390, 35268, 38207, 41146, 43680, 44085, 47024, 58780, 61719, 70536, 76414, 82292, 87360, 88170, 94048, 102865, 114621, 117560, 123438, 141072, 152828, 164584, 176340, 188096, 191035, 205730, 229242, 235120, 246876, 267449, 282144, 305656, 308595, 329168, 352680, 382070, 411460, 458484, 470240, 493752, 534898, 564288, 573105, 611312, 617190, 658336, 705360, 764140, 802347, 822920, 916968, 940480, 987504, 1069796, 1146210, 1222624, 1234380, 1316672, 1337245, 1410720, 1528280, 1604694, 1645840, 1833936, 1975008, 2139592, 2292420, 2445248, 2468760, 2674490, 2821440, 3056560, 3209388, 3291680, 3667872, 3950016, 4011735, 4279184, 4584840, 4937520, 5348980, 6113120, 6418776, 6583360, 7335744, 8023470, 8558368, 9169680, 9875040, 10697960, 12226240, 12837552, 16046940, 17116736, 18339360, 19750080, 21395920, 25675104, 32093880, 36678720, 42791840, 51350208, 64187760, 85583680, 128375520, 256751040]

約数ペア:

[(1, 256751040), (2, 128375520), (3, 85583680), (4, 64187760), (5, 51350208), (6, 42791840), (7, 36678720), (8, 32093880), (10, 25675104), (12, 21395920), (13, 19750080), (14, 18339360), (15, 17116736), (16, 16046940), (20, 12837552), (21, 12226240), (24, 10697960), (26, 9875040), (28, 9169680), (30, 8558368), (32, 8023470), (35, 7335744), (39, 6583360), (40, 6418776), (42, 6113120), (48, 5348980), (52, 4937520), (56, 4584840), (60, 4279184), (64, 4011735), (65, 3950016), (70, 3667872), (78, 3291680), (80, 3209388), (84, 3056560), (91, 2821440), (96, 2674490), (104, 2468760), (105, 2445248), (112, 2292420), (120, 2139592), (130, 1975008), (140, 1833936), (156, 1645840), (160, 1604694), (168, 1528280), (182, 1410720), (192, 1337245), (195, 1316672), (208, 1234380), (210, 1222624), (224, 1146210), (240, 1069796), (260, 987504), (273, 940480), (280, 916968), (312, 822920), (320, 802347), (336, 764140), (364, 705360), (390, 658336), (416, 617190), (420, 611312), (448, 573105), (455, 564288), (480, 534898), (520, 493752), (546, 470240), (560, 458484), (624, 411460), (672, 382070), (728, 352680), (780, 329168), (832, 308595), (840, 305656), (910, 282144), (960, 267449), (1040, 246876), (1092, 235120), (1120, 229242), (1248, 205730), (1344, 191035), (1365, 188096), (1456, 176340), (1560, 164584), (1680, 152828), (1820, 141072), (2080, 123438), (2184, 117560), (2240, 114621), (2496, 102865), (2730, 94048), (2912, 88170), (2939, 87360), (3120, 82292), (3360, 76414), (3640, 70536), (4160, 61719), (4368, 58780), (5460, 47024), (5824, 44085), (5878, 43680), (6240, 41146), (6720, 38207), (7280, 35268), (8736, 29390), (8817, 29120), (10920, 23512), (11756, 21840), (12480, 20573), (14560, 17634), (14695, 17472)]