254145920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:161

約数の個数: 256

約数和(自身を含む): 761425920

約数和(自身を除く): 507280000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 47, 56, 64, 68, 70, 71, 80, 85, 94, 112, 119, 128, 136, 140, 142, 160, 170, 188, 224, 235, 238, 272, 280, 284, 320, 329, 340, 355, 376, 448, 470, 476, 497, 544, 560, 568, 595, 640, 658, 680, 710, 752, 799, 896, 940, 952, 994, 1088, 1120, 1136, 1190, 1207, 1316, 1360, 1420, 1504, 1598, 1645, 1880, 1904, 1988, 2176, 2240, 2272, 2380, 2414, 2485, 2632, 2720, 2840, 3008, 3196, 3290, 3337, 3760, 3808, 3976, 3995, 4480, 4544, 4760, 4828, 4970, 5264, 5440, 5593, 5680, 6016, 6035, 6392, 6580, 6674, 7520, 7616, 7952, 7990, 8449, 9088, 9520, 9656, 9940, 10528, 10880, 11186, 11360, 12070, 12784, 13160, 13348, 15040, 15232, 15904, 15980, 16685, 16898, 19040, 19312, 19880, 21056, 22372, 22720, 23359, 24140, 25568, 26320, 26696, 27965, 30080, 31808, 31960, 33370, 33796, 38080, 38624, 39760, 42112, 42245, 44744, 45440, 46718, 48280, 51136, 52640, 53392, 55930, 56729, 63616, 63920, 66740, 67592, 76160, 77248, 79520, 84490, 89488, 93436, 96560, 102272, 105280, 106784, 111860, 113458, 116795, 127840, 133480, 135184, 154496, 159040, 168980, 178976, 186872, 193120, 210560, 213568, 223720, 226916, 233590, 255680, 266960, 270368, 283645, 318080, 337960, 357952, 373744, 386240, 397103, 427136, 447440, 453832, 467180, 511360, 533920, 540736, 567290, 675920, 715904, 747488, 772480, 794206, 894880, 907664, 934360, 1067840, 1081472, 1134580, 1351840, 1494976, 1588412, 1789760, 1815328, 1868720, 1985515, 2135680, 2269160, 2703680, 2989952, 3176824, 3579520, 3630656, 3737440, 3971030, 4538320, 5407360, 6353648, 7261312, 7474880, 7942060, 9076640, 12707296, 14949760, 15884120, 18153280, 25414592, 31768240, 36306560, 50829184, 63536480, 127072960, 254145920]

約数ペア:

[(1, 254145920), (2, 127072960), (4, 63536480), (5, 50829184), (7, 36306560), (8, 31768240), (10, 25414592), (14, 18153280), (16, 15884120), (17, 14949760), (20, 12707296), (28, 9076640), (32, 7942060), (34, 7474880), (35, 7261312), (40, 6353648), (47, 5407360), (56, 4538320), (64, 3971030), (68, 3737440), (70, 3630656), (71, 3579520), (80, 3176824), (85, 2989952), (94, 2703680), (112, 2269160), (119, 2135680), (128, 1985515), (136, 1868720), (140, 1815328), (142, 1789760), (160, 1588412), (170, 1494976), (188, 1351840), (224, 1134580), (235, 1081472), (238, 1067840), (272, 934360), (280, 907664), (284, 894880), (320, 794206), (329, 772480), (340, 747488), (355, 715904), (376, 675920), (448, 567290), (470, 540736), (476, 533920), (497, 511360), (544, 467180), (560, 453832), (568, 447440), (595, 427136), (640, 397103), (658, 386240), (680, 373744), (710, 357952), (752, 337960), (799, 318080), (896, 283645), (940, 270368), (952, 266960), (994, 255680), (1088, 233590), (1120, 226916), (1136, 223720), (1190, 213568), (1207, 210560), (1316, 193120), (1360, 186872), (1420, 178976), (1504, 168980), (1598, 159040), (1645, 154496), (1880, 135184), (1904, 133480), (1988, 127840), (2176, 116795), (2240, 113458), (2272, 111860), (2380, 106784), (2414, 105280), (2485, 102272), (2632, 96560), (2720, 93436), (2840, 89488), (3008, 84490), (3196, 79520), (3290, 77248), (3337, 76160), (3760, 67592), (3808, 66740), (3976, 63920), (3995, 63616), (4480, 56729), (4544, 55930), (4760, 53392), (4828, 52640), (4970, 51136), (5264, 48280), (5440, 46718), (5593, 45440), (5680, 44744), (6016, 42245), (6035, 42112), (6392, 39760), (6580, 38624), (6674, 38080), (7520, 33796), (7616, 33370), (7952, 31960), (7990, 31808), (8449, 30080), (9088, 27965), (9520, 26696), (9656, 26320), (9940, 25568), (10528, 24140), (10880, 23359), (11186, 22720), (11360, 22372), (12070, 21056), (12784, 19880), (13160, 19312), (13348, 19040), (15040, 16898), (15232, 16685), (15904, 15980)]