256423440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:294

約数の個数: 320

約数和(自身を含む): 999936000

約数和(自身を除く): 743512560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 52, 56, 59, 60, 65, 70, 78, 80, 84, 91, 104, 105, 112, 118, 120, 130, 140, 156, 168, 177, 182, 195, 199, 208, 210, 236, 240, 260, 273, 280, 295, 312, 336, 354, 364, 390, 398, 413, 420, 455, 472, 520, 546, 560, 590, 597, 624, 708, 728, 767, 780, 796, 826, 840, 885, 910, 944, 995, 1040, 1092, 1180, 1194, 1239, 1365, 1393, 1416, 1456, 1534, 1560, 1592, 1652, 1680, 1770, 1820, 1990, 2065, 2184, 2301, 2360, 2388, 2478, 2587, 2730, 2786, 2832, 2985, 3068, 3120, 3184, 3304, 3540, 3640, 3835, 3980, 4130, 4179, 4368, 4602, 4720, 4776, 4956, 5174, 5369, 5460, 5572, 5970, 6136, 6195, 6608, 6965, 7080, 7280, 7670, 7761, 7960, 8260, 8358, 9204, 9552, 9912, 10348, 10738, 10920, 11144, 11505, 11741, 11940, 12272, 12390, 12935, 13930, 14160, 15340, 15522, 15920, 16107, 16520, 16716, 18109, 18408, 19824, 20696, 20895, 21476, 21840, 22288, 23010, 23482, 23880, 24780, 25870, 26845, 27860, 30680, 31044, 32214, 33040, 33432, 35223, 36218, 36816, 38805, 41392, 41790, 42952, 46020, 46964, 47760, 49560, 51740, 53690, 54327, 55720, 58705, 61360, 62088, 64428, 66864, 70446, 72436, 77610, 80535, 82187, 83580, 85904, 90545, 92040, 93928, 99120, 103480, 107380, 108654, 111440, 117410, 124176, 128856, 140892, 144872, 152633, 155220, 161070, 164374, 167160, 176115, 181090, 184080, 187856, 206960, 214760, 217308, 234820, 246561, 257712, 271635, 281784, 289744, 305266, 310440, 322140, 328748, 334320, 352230, 362180, 410935, 429520, 434616, 457899, 469640, 493122, 543270, 563568, 610532, 620880, 644280, 657496, 704460, 724360, 763165, 821870, 869232, 915798, 939280, 986244, 1068431, 1086540, 1221064, 1232805, 1288560, 1314992, 1408920, 1448720, 1526330, 1643740, 1831596, 1972488, 2136862, 2173080, 2289495, 2442128, 2465610, 2817840, 3052660, 3205293, 3287480, 3663192, 3944976, 4273724, 4346160, 4578990, 4931220, 5342155, 6105320, 6410586, 6574960, 7326384, 8547448, 9157980, 9862440, 10684310, 12210640, 12821172, 16026465, 17094896, 18315960, 19724880, 21368620, 25642344, 32052930, 36631920, 42737240, 51284688, 64105860, 85474480, 128211720, 256423440]

約数ペア:

[(1, 256423440), (2, 128211720), (3, 85474480), (4, 64105860), (5, 51284688), (6, 42737240), (7, 36631920), (8, 32052930), (10, 25642344), (12, 21368620), (13, 19724880), (14, 18315960), (15, 17094896), (16, 16026465), (20, 12821172), (21, 12210640), (24, 10684310), (26, 9862440), (28, 9157980), (30, 8547448), (35, 7326384), (39, 6574960), (40, 6410586), (42, 6105320), (48, 5342155), (52, 4931220), (56, 4578990), (59, 4346160), (60, 4273724), (65, 3944976), (70, 3663192), (78, 3287480), (80, 3205293), (84, 3052660), (91, 2817840), (104, 2465610), (105, 2442128), (112, 2289495), (118, 2173080), (120, 2136862), (130, 1972488), (140, 1831596), (156, 1643740), (168, 1526330), (177, 1448720), (182, 1408920), (195, 1314992), (199, 1288560), (208, 1232805), (210, 1221064), (236, 1086540), (240, 1068431), (260, 986244), (273, 939280), (280, 915798), (295, 869232), (312, 821870), (336, 763165), (354, 724360), (364, 704460), (390, 657496), (398, 644280), (413, 620880), (420, 610532), (455, 563568), (472, 543270), (520, 493122), (546, 469640), (560, 457899), (590, 434616), (597, 429520), (624, 410935), (708, 362180), (728, 352230), (767, 334320), (780, 328748), (796, 322140), (826, 310440), (840, 305266), (885, 289744), (910, 281784), (944, 271635), (995, 257712), (1040, 246561), (1092, 234820), (1180, 217308), (1194, 214760), (1239, 206960), (1365, 187856), (1393, 184080), (1416, 181090), (1456, 176115), (1534, 167160), (1560, 164374), (1592, 161070), (1652, 155220), (1680, 152633), (1770, 144872), (1820, 140892), (1990, 128856), (2065, 124176), (2184, 117410), (2301, 111440), (2360, 108654), (2388, 107380), (2478, 103480), (2587, 99120), (2730, 93928), (2786, 92040), (2832, 90545), (2985, 85904), (3068, 83580), (3120, 82187), (3184, 80535), (3304, 77610), (3540, 72436), (3640, 70446), (3835, 66864), (3980, 64428), (4130, 62088), (4179, 61360), (4368, 58705), (4602, 55720), (4720, 54327), (4776, 53690), (4956, 51740), (5174, 49560), (5369, 47760), (5460, 46964), (5572, 46020), (5970, 42952), (6136, 41790), (6195, 41392), (6608, 38805), (6965, 36816), (7080, 36218), (7280, 35223), (7670, 33432), (7761, 33040), (7960, 32214), (8260, 31044), (8358, 30680), (9204, 27860), (9552, 26845), (9912, 25870), (10348, 24780), (10738, 23880), (10920, 23482), (11144, 23010), (11505, 22288), (11741, 21840), (11940, 21476), (12272, 20895), (12390, 20696), (12935, 19824), (13930, 18408), (14160, 18109), (15340, 16716), (15522, 16520), (15920, 16107)]