205718240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:305

約数の個数: 192

約数和(自身を含む): 609638400

約数和(自身を除く): 403920160

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 71, 80, 91, 104, 112, 130, 140, 142, 160, 182, 199, 208, 224, 260, 280, 284, 355, 364, 398, 416, 455, 497, 520, 560, 568, 710, 728, 796, 910, 923, 994, 995, 1040, 1120, 1136, 1393, 1420, 1456, 1592, 1820, 1846, 1988, 1990, 2080, 2272, 2485, 2587, 2786, 2840, 2912, 3184, 3640, 3692, 3976, 3980, 4615, 4970, 5174, 5572, 5680, 6368, 6461, 6965, 7280, 7384, 7952, 7960, 9230, 9940, 10348, 11144, 11360, 12922, 12935, 13930, 14129, 14560, 14768, 15904, 15920, 18109, 18460, 19880, 20696, 22288, 25844, 25870, 27860, 28258, 29536, 31840, 32305, 36218, 36920, 39760, 41392, 44576, 51688, 51740, 55720, 56516, 64610, 70645, 72436, 73840, 79520, 82784, 90545, 98903, 103376, 103480, 111440, 113032, 129220, 141290, 144872, 147680, 181090, 183677, 197806, 206752, 206960, 222880, 226064, 258440, 282580, 289744, 362180, 367354, 395612, 413920, 452128, 494515, 516880, 565160, 579488, 724360, 734708, 791224, 918385, 989030, 1033760, 1130320, 1285739, 1448720, 1469416, 1582448, 1836770, 1978060, 2260640, 2571478, 2897440, 2938832, 3164896, 3673540, 3956120, 5142956, 5877664, 6428695, 7347080, 7912240, 10285912, 12857390, 14694160, 15824480, 20571824, 25714780, 29388320, 41143648, 51429560, 102859120, 205718240]

約数ペア:

[(1, 205718240), (2, 102859120), (4, 51429560), (5, 41143648), (7, 29388320), (8, 25714780), (10, 20571824), (13, 15824480), (14, 14694160), (16, 12857390), (20, 10285912), (26, 7912240), (28, 7347080), (32, 6428695), (35, 5877664), (40, 5142956), (52, 3956120), (56, 3673540), (65, 3164896), (70, 2938832), (71, 2897440), (80, 2571478), (91, 2260640), (104, 1978060), (112, 1836770), (130, 1582448), (140, 1469416), (142, 1448720), (160, 1285739), (182, 1130320), (199, 1033760), (208, 989030), (224, 918385), (260, 791224), (280, 734708), (284, 724360), (355, 579488), (364, 565160), (398, 516880), (416, 494515), (455, 452128), (497, 413920), (520, 395612), (560, 367354), (568, 362180), (710, 289744), (728, 282580), (796, 258440), (910, 226064), (923, 222880), (994, 206960), (995, 206752), (1040, 197806), (1120, 183677), (1136, 181090), (1393, 147680), (1420, 144872), (1456, 141290), (1592, 129220), (1820, 113032), (1846, 111440), (1988, 103480), (1990, 103376), (2080, 98903), (2272, 90545), (2485, 82784), (2587, 79520), (2786, 73840), (2840, 72436), (2912, 70645), (3184, 64610), (3640, 56516), (3692, 55720), (3976, 51740), (3980, 51688), (4615, 44576), (4970, 41392), (5174, 39760), (5572, 36920), (5680, 36218), (6368, 32305), (6461, 31840), (6965, 29536), (7280, 28258), (7384, 27860), (7952, 25870), (7960, 25844), (9230, 22288), (9940, 20696), (10348, 19880), (11144, 18460), (11360, 18109), (12922, 15920), (12935, 15904), (13930, 14768), (14129, 14560)]