20578621840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{9719}}^1$

素因数の和:9957

約数の個数: 160

約数和(自身を含む): 57853440000

約数和(自身を除く): 37274818160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 199, 266, 280, 304, 380, 398, 532, 560, 665, 760, 796, 995, 1064, 1330, 1393, 1520, 1592, 1990, 2128, 2660, 2786, 3184, 3781, 3980, 5320, 5572, 6965, 7562, 7960, 9719, 10640, 11144, 13930, 15124, 15920, 18905, 19438, 22288, 26467, 27860, 30248, 37810, 38876, 48595, 52934, 55720, 60496, 68033, 75620, 77752, 97190, 105868, 111440, 132335, 136066, 151240, 155504, 184661, 194380, 211736, 264670, 272132, 302480, 340165, 369322, 388760, 423472, 529340, 544264, 680330, 738644, 777520, 923305, 1058680, 1088528, 1292627, 1360660, 1477288, 1846610, 1934081, 2117360, 2585254, 2721320, 2954576, 3693220, 3868162, 5170508, 5442640, 6463135, 7386440, 7736324, 9670405, 10341016, 12926270, 13538567, 14772880, 15472648, 19340810, 20682032, 25852540, 27077134, 30945296, 36747539, 38681620, 51705080, 54154268, 67692835, 73495078, 77363240, 103410160, 108308536, 135385670, 146990156, 154726480, 183737695, 216617072, 257232773, 270771340, 293980312, 367475390, 514465546, 541542680, 587960624, 734950780, 1028931092, 1083085360, 1286163865, 1469901560, 2057862184, 2572327730, 2939803120, 4115724368, 5144655460, 10289310920, 20578621840]

約数ペア:

[(1, 20578621840), (2, 10289310920), (4, 5144655460), (5, 4115724368), (7, 2939803120), (8, 2572327730), (10, 2057862184), (14, 1469901560), (16, 1286163865), (19, 1083085360), (20, 1028931092), (28, 734950780), (35, 587960624), (38, 541542680), (40, 514465546), (56, 367475390), (70, 293980312), (76, 270771340), (80, 257232773), (95, 216617072), (112, 183737695), (133, 154726480), (140, 146990156), (152, 135385670), (190, 108308536), (199, 103410160), (266, 77363240), (280, 73495078), (304, 67692835), (380, 54154268), (398, 51705080), (532, 38681620), (560, 36747539), (665, 30945296), (760, 27077134), (796, 25852540), (995, 20682032), (1064, 19340810), (1330, 15472648), (1393, 14772880), (1520, 13538567), (1592, 12926270), (1990, 10341016), (2128, 9670405), (2660, 7736324), (2786, 7386440), (3184, 6463135), (3781, 5442640), (3980, 5170508), (5320, 3868162), (5572, 3693220), (6965, 2954576), (7562, 2721320), (7960, 2585254), (9719, 2117360), (10640, 1934081), (11144, 1846610), (13930, 1477288), (15124, 1360660), (15920, 1292627), (18905, 1088528), (19438, 1058680), (22288, 923305), (26467, 777520), (27860, 738644), (30248, 680330), (37810, 544264), (38876, 529340), (48595, 423472), (52934, 388760), (55720, 369322), (60496, 340165), (68033, 302480), (75620, 272132), (77752, 264670), (97190, 211736), (105868, 194380), (111440, 184661), (132335, 155504), (136066, 151240)]