291211480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:166

約数の個数: 192

約数和(自身を含む): 820765440

約数和(自身を除く): 529553960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 43, 56, 67, 70, 76, 86, 95, 133, 134, 140, 152, 172, 190, 215, 266, 268, 280, 301, 335, 344, 361, 380, 430, 469, 532, 536, 602, 665, 670, 722, 760, 817, 860, 938, 1064, 1204, 1273, 1330, 1340, 1444, 1505, 1634, 1720, 1805, 1876, 2345, 2408, 2527, 2546, 2660, 2680, 2881, 2888, 3010, 3268, 3610, 3752, 4085, 4690, 5054, 5092, 5320, 5719, 5762, 6020, 6365, 6536, 7220, 8170, 8911, 9380, 10108, 10184, 11438, 11524, 12040, 12635, 12730, 14405, 14440, 15523, 16340, 17822, 18760, 20167, 20216, 22876, 23048, 24187, 25270, 25460, 28595, 28810, 31046, 32680, 35644, 40334, 44555, 45752, 48374, 50540, 50920, 54739, 57190, 57620, 62092, 71288, 77615, 80668, 89110, 96748, 100835, 101080, 108661, 109478, 114380, 115240, 120935, 124184, 155230, 161336, 169309, 178220, 193496, 201670, 217322, 218956, 228760, 241870, 273695, 310460, 338618, 356440, 383173, 403340, 434644, 437912, 483740, 543305, 547390, 620920, 677236, 766346, 806680, 846545, 869288, 967480, 1040041, 1086610, 1094780, 1354472, 1532692, 1693090, 1915865, 2080082, 2173220, 2189560, 3065384, 3386180, 3831730, 4160164, 4346440, 5200205, 6772360, 7280287, 7663460, 8320328, 10400410, 14560574, 15326920, 20800820, 29121148, 36401435, 41601640, 58242296, 72802870, 145605740, 291211480]

約数ペア:

[(1, 291211480), (2, 145605740), (4, 72802870), (5, 58242296), (7, 41601640), (8, 36401435), (10, 29121148), (14, 20800820), (19, 15326920), (20, 14560574), (28, 10400410), (35, 8320328), (38, 7663460), (40, 7280287), (43, 6772360), (56, 5200205), (67, 4346440), (70, 4160164), (76, 3831730), (86, 3386180), (95, 3065384), (133, 2189560), (134, 2173220), (140, 2080082), (152, 1915865), (172, 1693090), (190, 1532692), (215, 1354472), (266, 1094780), (268, 1086610), (280, 1040041), (301, 967480), (335, 869288), (344, 846545), (361, 806680), (380, 766346), (430, 677236), (469, 620920), (532, 547390), (536, 543305), (602, 483740), (665, 437912), (670, 434644), (722, 403340), (760, 383173), (817, 356440), (860, 338618), (938, 310460), (1064, 273695), (1204, 241870), (1273, 228760), (1330, 218956), (1340, 217322), (1444, 201670), (1505, 193496), (1634, 178220), (1720, 169309), (1805, 161336), (1876, 155230), (2345, 124184), (2408, 120935), (2527, 115240), (2546, 114380), (2660, 109478), (2680, 108661), (2881, 101080), (2888, 100835), (3010, 96748), (3268, 89110), (3610, 80668), (3752, 77615), (4085, 71288), (4690, 62092), (5054, 57620), (5092, 57190), (5320, 54739), (5719, 50920), (5762, 50540), (6020, 48374), (6365, 45752), (6536, 44555), (7220, 40334), (8170, 35644), (8911, 32680), (9380, 31046), (10108, 28810), (10184, 28595), (11438, 25460), (11524, 25270), (12040, 24187), (12635, 23048), (12730, 22876), (14405, 20216), (14440, 20167), (15523, 18760), (16340, 17822)]