1331286880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:442

約数の個数: 288

約数和(自身を含む): 4095463680

約数和(自身を除く): 2764176800

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 43, 44, 49, 55, 56, 70, 77, 80, 86, 88, 98, 110, 112, 140, 154, 160, 172, 176, 196, 215, 220, 224, 245, 280, 301, 308, 344, 352, 359, 385, 392, 430, 440, 473, 490, 539, 560, 602, 616, 688, 718, 770, 784, 860, 880, 946, 980, 1078, 1120, 1204, 1232, 1376, 1436, 1505, 1540, 1568, 1720, 1760, 1795, 1892, 1960, 2107, 2156, 2365, 2408, 2464, 2513, 2695, 2872, 3010, 3080, 3311, 3440, 3590, 3784, 3920, 3949, 4214, 4312, 4730, 4816, 5026, 5390, 5744, 6020, 6160, 6622, 6880, 7180, 7568, 7840, 7898, 8428, 8624, 9460, 9632, 10052, 10535, 10780, 11488, 12040, 12320, 12565, 13244, 14360, 15136, 15437, 15796, 16555, 16856, 17248, 17591, 18920, 19745, 20104, 21070, 21560, 23177, 24080, 25130, 26488, 27643, 28720, 30874, 31592, 33110, 33712, 35182, 37840, 39490, 40208, 42140, 43120, 46354, 48160, 50260, 52976, 55286, 57440, 61748, 63184, 66220, 67424, 70364, 75680, 77185, 78980, 80416, 84280, 86240, 87955, 92708, 100520, 105952, 108059, 110572, 115885, 123496, 126368, 132440, 138215, 140728, 154370, 157960, 168560, 169807, 175910, 185416, 193501, 201040, 216118, 221144, 231770, 246992, 264880, 276430, 281456, 308740, 315920, 337120, 339614, 351820, 370832, 387002, 402080, 432236, 442288, 463540, 493984, 529760, 540295, 552860, 562912, 617480, 631840, 679228, 703640, 741664, 756413, 774004, 849035, 864472, 884576, 927080, 967505, 1080590, 1105720, 1188649, 1234960, 1358456, 1407280, 1512826, 1548008, 1698070, 1728944, 1854160, 1935010, 2161180, 2211440, 2377298, 2469920, 2716912, 2814560, 3025652, 3096016, 3396140, 3457888, 3708320, 3782065, 3870020, 4322360, 4422880, 4754596, 5433824, 5943245, 6051304, 6192032, 6792280, 7564130, 7740040, 8320543, 8644720, 9509192, 11886490, 12102608, 13584560, 15128260, 15480080, 16641086, 17289440, 19018384, 23772980, 24205216, 27169120, 30256520, 30960160, 33282172, 38036768, 41602715, 47545960, 60513040, 66564344, 83205430, 95091920, 121026080, 133128688, 166410860, 190183840, 266257376, 332821720, 665643440, 1331286880]

約数ペア:

[(1, 1331286880), (2, 665643440), (4, 332821720), (5, 266257376), (7, 190183840), (8, 166410860), (10, 133128688), (11, 121026080), (14, 95091920), (16, 83205430), (20, 66564344), (22, 60513040), (28, 47545960), (32, 41602715), (35, 38036768), (40, 33282172), (43, 30960160), (44, 30256520), (49, 27169120), (55, 24205216), (56, 23772980), (70, 19018384), (77, 17289440), (80, 16641086), (86, 15480080), (88, 15128260), (98, 13584560), (110, 12102608), (112, 11886490), (140, 9509192), (154, 8644720), (160, 8320543), (172, 7740040), (176, 7564130), (196, 6792280), (215, 6192032), (220, 6051304), (224, 5943245), (245, 5433824), (280, 4754596), (301, 4422880), (308, 4322360), (344, 3870020), (352, 3782065), (359, 3708320), (385, 3457888), (392, 3396140), (430, 3096016), (440, 3025652), (473, 2814560), (490, 2716912), (539, 2469920), (560, 2377298), (602, 2211440), (616, 2161180), (688, 1935010), (718, 1854160), (770, 1728944), (784, 1698070), (860, 1548008), (880, 1512826), (946, 1407280), (980, 1358456), (1078, 1234960), (1120, 1188649), (1204, 1105720), (1232, 1080590), (1376, 967505), (1436, 927080), (1505, 884576), (1540, 864472), (1568, 849035), (1720, 774004), (1760, 756413), (1795, 741664), (1892, 703640), (1960, 679228), (2107, 631840), (2156, 617480), (2365, 562912), (2408, 552860), (2464, 540295), (2513, 529760), (2695, 493984), (2872, 463540), (3010, 442288), (3080, 432236), (3311, 402080), (3440, 387002), (3590, 370832), (3784, 351820), (3920, 339614), (3949, 337120), (4214, 315920), (4312, 308740), (4730, 281456), (4816, 276430), (5026, 264880), (5390, 246992), (5744, 231770), (6020, 221144), (6160, 216118), (6622, 201040), (6880, 193501), (7180, 185416), (7568, 175910), (7840, 169807), (7898, 168560), (8428, 157960), (8624, 154370), (9460, 140728), (9632, 138215), (10052, 132440), (10535, 126368), (10780, 123496), (11488, 115885), (12040, 110572), (12320, 108059), (12565, 105952), (13244, 100520), (14360, 92708), (15136, 87955), (15437, 86240), (15796, 84280), (16555, 80416), (16856, 78980), (17248, 77185), (17591, 75680), (18920, 70364), (19745, 67424), (20104, 66220), (21070, 63184), (21560, 61748), (23177, 57440), (24080, 55286), (25130, 52976), (26488, 50260), (27643, 48160), (28720, 46354), (30874, 43120), (31592, 42140), (33110, 40208), (33712, 39490), (35182, 37840)]