256780440

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:247

約数の個数: 384

約数和(自身を含む): 1042329600

約数和(自身を除く): 785549160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 28, 30, 31, 35, 36, 38, 40, 42, 45, 56, 57, 60, 62, 63, 70, 72, 76, 84, 90, 93, 95, 105, 114, 120, 124, 126, 133, 140, 152, 155, 168, 171, 173, 180, 186, 190, 210, 217, 228, 248, 252, 266, 279, 280, 285, 310, 315, 342, 346, 360, 372, 380, 399, 420, 434, 456, 465, 504, 519, 532, 558, 570, 589, 620, 630, 651, 665, 684, 692, 744, 760, 798, 840, 855, 865, 868, 930, 1038, 1064, 1085, 1116, 1140, 1178, 1197, 1211, 1240, 1260, 1302, 1330, 1368, 1384, 1395, 1557, 1596, 1710, 1730, 1736, 1767, 1860, 1953, 1995, 2076, 2170, 2232, 2280, 2356, 2394, 2422, 2520, 2595, 2604, 2660, 2790, 2945, 3114, 3192, 3255, 3287, 3420, 3460, 3534, 3633, 3720, 3906, 3990, 4123, 4152, 4340, 4712, 4788, 4844, 5190, 5208, 5301, 5320, 5363, 5580, 5890, 5985, 6055, 6228, 6510, 6574, 6840, 6920, 7068, 7266, 7785, 7812, 7980, 8246, 8680, 8835, 9576, 9688, 9765, 9861, 10380, 10602, 10726, 10899, 11160, 11780, 11970, 12110, 12369, 12456, 13020, 13148, 14136, 14532, 15570, 15624, 15960, 16089, 16435, 16492, 17670, 18165, 19530, 19722, 20615, 20760, 21204, 21452, 21798, 23009, 23560, 23940, 24220, 24738, 26040, 26296, 26505, 26815, 29064, 29583, 31140, 32178, 32870, 32984, 35340, 36330, 37107, 37541, 39060, 39444, 41230, 42408, 42904, 43596, 46018, 47880, 48267, 48440, 49305, 49476, 53010, 53630, 54495, 59166, 61845, 62280, 64356, 65740, 69027, 70680, 72660, 74214, 75082, 78120, 78888, 80445, 82460, 87192, 92036, 96534, 98610, 98952, 101897, 106020, 107260, 108990, 112623, 115045, 118332, 123690, 128712, 131480, 138054, 145320, 147915, 148428, 150164, 160890, 164920, 184072, 185535, 187705, 193068, 197220, 203794, 207081, 212040, 214520, 217980, 225246, 230090, 236664, 241335, 247380, 276108, 295830, 296856, 300328, 305691, 321780, 337869, 345135, 371070, 375410, 386136, 394440, 407588, 414162, 435960, 450492, 460180, 482670, 494760, 509485, 552216, 563115, 591660, 611382, 643560, 675738, 690270, 713279, 742140, 750820, 815176, 828324, 900984, 917073, 920360, 965340, 1018970, 1035405, 1126230, 1183320, 1222764, 1351476, 1380540, 1426558, 1484280, 1501640, 1528455, 1656648, 1689345, 1834146, 1930680, 2037940, 2070810, 2139837, 2252460, 2445528, 2702952, 2761080, 2853116, 3056910, 3378690, 3566395, 3668292, 4075880, 4141620, 4279674, 4504920, 4585365, 5706232, 6113820, 6419511, 6757380, 7132790, 7336584, 8283240, 8559348, 9170730, 10699185, 12227640, 12839022, 13514760, 14265580, 17118696, 18341460, 21398370, 25678044, 28531160, 32097555, 36682920, 42796740, 51356088, 64195110, 85593480, 128390220, 256780440]

約数ペア:

[(1, 256780440), (2, 128390220), (3, 85593480), (4, 64195110), (5, 51356088), (6, 42796740), (7, 36682920), (8, 32097555), (9, 28531160), (10, 25678044), (12, 21398370), (14, 18341460), (15, 17118696), (18, 14265580), (19, 13514760), (20, 12839022), (21, 12227640), (24, 10699185), (28, 9170730), (30, 8559348), (31, 8283240), (35, 7336584), (36, 7132790), (38, 6757380), (40, 6419511), (42, 6113820), (45, 5706232), (56, 4585365), (57, 4504920), (60, 4279674), (62, 4141620), (63, 4075880), (70, 3668292), (72, 3566395), (76, 3378690), (84, 3056910), (90, 2853116), (93, 2761080), (95, 2702952), (105, 2445528), (114, 2252460), (120, 2139837), (124, 2070810), (126, 2037940), (133, 1930680), (140, 1834146), (152, 1689345), (155, 1656648), (168, 1528455), (171, 1501640), (173, 1484280), (180, 1426558), (186, 1380540), (190, 1351476), (210, 1222764), (217, 1183320), (228, 1126230), (248, 1035405), (252, 1018970), (266, 965340), (279, 920360), (280, 917073), (285, 900984), (310, 828324), (315, 815176), (342, 750820), (346, 742140), (360, 713279), (372, 690270), (380, 675738), (399, 643560), (420, 611382), (434, 591660), (456, 563115), (465, 552216), (504, 509485), (519, 494760), (532, 482670), (558, 460180), (570, 450492), (589, 435960), (620, 414162), (630, 407588), (651, 394440), (665, 386136), (684, 375410), (692, 371070), (744, 345135), (760, 337869), (798, 321780), (840, 305691), (855, 300328), (865, 296856), (868, 295830), (930, 276108), (1038, 247380), (1064, 241335), (1085, 236664), (1116, 230090), (1140, 225246), (1178, 217980), (1197, 214520), (1211, 212040), (1240, 207081), (1260, 203794), (1302, 197220), (1330, 193068), (1368, 187705), (1384, 185535), (1395, 184072), (1557, 164920), (1596, 160890), (1710, 150164), (1730, 148428), (1736, 147915), (1767, 145320), (1860, 138054), (1953, 131480), (1995, 128712), (2076, 123690), (2170, 118332), (2232, 115045), (2280, 112623), (2356, 108990), (2394, 107260), (2422, 106020), (2520, 101897), (2595, 98952), (2604, 98610), (2660, 96534), (2790, 92036), (2945, 87192), (3114, 82460), (3192, 80445), (3255, 78888), (3287, 78120), (3420, 75082), (3460, 74214), (3534, 72660), (3633, 70680), (3720, 69027), (3906, 65740), (3990, 64356), (4123, 62280), (4152, 61845), (4340, 59166), (4712, 54495), (4788, 53630), (4844, 53010), (5190, 49476), (5208, 49305), (5301, 48440), (5320, 48267), (5363, 47880), (5580, 46018), (5890, 43596), (5985, 42904), (6055, 42408), (6228, 41230), (6510, 39444), (6574, 39060), (6840, 37541), (6920, 37107), (7068, 36330), (7266, 35340), (7785, 32984), (7812, 32870), (7980, 32178), (8246, 31140), (8680, 29583), (8835, 29064), (9576, 26815), (9688, 26505), (9765, 26296), (9861, 26040), (10380, 24738), (10602, 24220), (10726, 23940), (10899, 23560), (11160, 23009), (11780, 21798), (11970, 21452), (12110, 21204), (12369, 20760), (12456, 20615), (13020, 19722), (13148, 19530), (14136, 18165), (14532, 17670), (15570, 16492), (15624, 16435), (15960, 16089)]