638767080

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4447}}^1$

素因数の和:4493

約数の個数: 256

約数和(自身を含む): 2562048000

約数和(自身を除く): 1923280920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 27, 28, 30, 35, 36, 38, 40, 42, 45, 54, 56, 57, 60, 63, 70, 72, 76, 84, 90, 95, 105, 108, 114, 120, 126, 133, 135, 140, 152, 168, 171, 180, 189, 190, 210, 216, 228, 252, 266, 270, 280, 285, 315, 342, 360, 378, 380, 399, 420, 456, 504, 513, 532, 540, 570, 630, 665, 684, 756, 760, 798, 840, 855, 945, 1026, 1064, 1080, 1140, 1197, 1260, 1330, 1368, 1512, 1596, 1710, 1890, 1995, 2052, 2280, 2394, 2520, 2565, 2660, 3192, 3420, 3591, 3780, 3990, 4104, 4447, 4788, 5130, 5320, 5985, 6840, 7182, 7560, 7980, 8894, 9576, 10260, 11970, 13341, 14364, 15960, 17788, 17955, 20520, 22235, 23940, 26682, 28728, 31129, 35576, 35910, 40023, 44470, 47880, 53364, 62258, 66705, 71820, 80046, 84493, 88940, 93387, 106728, 120069, 124516, 133410, 143640, 155645, 160092, 168986, 177880, 186774, 200115, 240138, 249032, 253479, 266820, 280161, 311290, 320184, 337972, 373548, 400230, 422465, 466935, 480276, 506958, 533640, 560322, 591451, 600345, 622580, 675944, 747096, 760437, 800460, 840483, 844930, 933870, 960552, 1013916, 1120644, 1182902, 1200690, 1245160, 1267395, 1400805, 1520874, 1600920, 1680966, 1689860, 1774353, 1867740, 2027832, 2241288, 2281311, 2365804, 2401380, 2534790, 2801610, 2957255, 3041748, 3361932, 3379720, 3548706, 3735480, 3802185, 4202415, 4562622, 4731608, 4802760, 5069580, 5323059, 5603220, 5914510, 6083496, 6723864, 7097412, 7604370, 8404830, 8871765, 9125244, 10139160, 10646118, 11206440, 11406555, 11829020, 14194824, 15208740, 15969177, 16809660, 17743530, 18250488, 21292236, 22813110, 23658040, 26615295, 30417480, 31938354, 33619320, 35487060, 42584472, 45626220, 53230590, 63876708, 70974120, 79845885, 91252440, 106461180, 127753416, 159691770, 212922360, 319383540, 638767080]

約数ペア:

[(1, 638767080), (2, 319383540), (3, 212922360), (4, 159691770), (5, 127753416), (6, 106461180), (7, 91252440), (8, 79845885), (9, 70974120), (10, 63876708), (12, 53230590), (14, 45626220), (15, 42584472), (18, 35487060), (19, 33619320), (20, 31938354), (21, 30417480), (24, 26615295), (27, 23658040), (28, 22813110), (30, 21292236), (35, 18250488), (36, 17743530), (38, 16809660), (40, 15969177), (42, 15208740), (45, 14194824), (54, 11829020), (56, 11406555), (57, 11206440), (60, 10646118), (63, 10139160), (70, 9125244), (72, 8871765), (76, 8404830), (84, 7604370), (90, 7097412), (95, 6723864), (105, 6083496), (108, 5914510), (114, 5603220), (120, 5323059), (126, 5069580), (133, 4802760), (135, 4731608), (140, 4562622), (152, 4202415), (168, 3802185), (171, 3735480), (180, 3548706), (189, 3379720), (190, 3361932), (210, 3041748), (216, 2957255), (228, 2801610), (252, 2534790), (266, 2401380), (270, 2365804), (280, 2281311), (285, 2241288), (315, 2027832), (342, 1867740), (360, 1774353), (378, 1689860), (380, 1680966), (399, 1600920), (420, 1520874), (456, 1400805), (504, 1267395), (513, 1245160), (532, 1200690), (540, 1182902), (570, 1120644), (630, 1013916), (665, 960552), (684, 933870), (756, 844930), (760, 840483), (798, 800460), (840, 760437), (855, 747096), (945, 675944), (1026, 622580), (1064, 600345), (1080, 591451), (1140, 560322), (1197, 533640), (1260, 506958), (1330, 480276), (1368, 466935), (1512, 422465), (1596, 400230), (1710, 373548), (1890, 337972), (1995, 320184), (2052, 311290), (2280, 280161), (2394, 266820), (2520, 253479), (2565, 249032), (2660, 240138), (3192, 200115), (3420, 186774), (3591, 177880), (3780, 168986), (3990, 160092), (4104, 155645), (4447, 143640), (4788, 133410), (5130, 124516), (5320, 120069), (5985, 106728), (6840, 93387), (7182, 88940), (7560, 84493), (7980, 80046), (8894, 71820), (9576, 66705), (10260, 62258), (11970, 53364), (13341, 47880), (14364, 44470), (15960, 40023), (17788, 35910), (17955, 35576), (20520, 31129), (22235, 28728), (23940, 26682)]