20191821440

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{1543}}^1$

素因数の和:1719

約数の個数: 256

約数和(自身を含む): 58056376320

約数和(自身を除く): 37864554880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 127, 128, 140, 160, 161, 184, 224, 230, 254, 280, 320, 322, 368, 448, 460, 508, 560, 635, 640, 644, 736, 805, 889, 896, 920, 1016, 1120, 1270, 1288, 1472, 1543, 1610, 1778, 1840, 2032, 2240, 2540, 2576, 2921, 2944, 3086, 3220, 3556, 3680, 4064, 4445, 4480, 5080, 5152, 5842, 6172, 6440, 7112, 7360, 7715, 8128, 8890, 10160, 10304, 10801, 11684, 12344, 12880, 14224, 14605, 14720, 15430, 16256, 17780, 20320, 20447, 20608, 21602, 23368, 24688, 25760, 28448, 29210, 30860, 35489, 35560, 40640, 40894, 43204, 46736, 49376, 51520, 54005, 56896, 58420, 61720, 70978, 71120, 81280, 81788, 86408, 93472, 98752, 102235, 103040, 108010, 113792, 116840, 123440, 141956, 142240, 163576, 172816, 177445, 186944, 195961, 197504, 204470, 216020, 233680, 246880, 248423, 283912, 284480, 327152, 345632, 354890, 373888, 391922, 408940, 432040, 467360, 493760, 496846, 567824, 568960, 654304, 691264, 709780, 783844, 817880, 864080, 934720, 979805, 987520, 993692, 1135648, 1242115, 1308608, 1371727, 1382528, 1419560, 1567688, 1635760, 1728160, 1869440, 1959610, 1987384, 2271296, 2484230, 2617216, 2743454, 2839120, 3135376, 3271520, 3456320, 3919220, 3974768, 4507103, 4542592, 4968460, 5486908, 5678240, 6270752, 6543040, 6858635, 6912640, 7838440, 7949536, 9014206, 9936920, 10973816, 11356480, 12541504, 13086080, 13717270, 15676880, 15899072, 18028412, 19873840, 21947632, 22535515, 22712960, 25083008, 27434540, 31353760, 31549721, 31798144, 36056824, 39747680, 43895264, 45071030, 54869080, 62707520, 63099442, 72113648, 79495360, 87790528, 90142060, 109738160, 125415040, 126198884, 144227296, 157748605, 158990720, 175581056, 180284120, 219476320, 252397768, 288454592, 315497210, 360568240, 438952640, 504795536, 576909184, 630994420, 721136480, 877905280, 1009591072, 1261988840, 1442272960, 2019182144, 2523977680, 2884545920, 4038364288, 5047955360, 10095910720, 20191821440]

約数ペア:

[(1, 20191821440), (2, 10095910720), (4, 5047955360), (5, 4038364288), (7, 2884545920), (8, 2523977680), (10, 2019182144), (14, 1442272960), (16, 1261988840), (20, 1009591072), (23, 877905280), (28, 721136480), (32, 630994420), (35, 576909184), (40, 504795536), (46, 438952640), (56, 360568240), (64, 315497210), (70, 288454592), (80, 252397768), (92, 219476320), (112, 180284120), (115, 175581056), (127, 158990720), (128, 157748605), (140, 144227296), (160, 126198884), (161, 125415040), (184, 109738160), (224, 90142060), (230, 87790528), (254, 79495360), (280, 72113648), (320, 63099442), (322, 62707520), (368, 54869080), (448, 45071030), (460, 43895264), (508, 39747680), (560, 36056824), (635, 31798144), (640, 31549721), (644, 31353760), (736, 27434540), (805, 25083008), (889, 22712960), (896, 22535515), (920, 21947632), (1016, 19873840), (1120, 18028412), (1270, 15899072), (1288, 15676880), (1472, 13717270), (1543, 13086080), (1610, 12541504), (1778, 11356480), (1840, 10973816), (2032, 9936920), (2240, 9014206), (2540, 7949536), (2576, 7838440), (2921, 6912640), (2944, 6858635), (3086, 6543040), (3220, 6270752), (3556, 5678240), (3680, 5486908), (4064, 4968460), (4445, 4542592), (4480, 4507103), (5080, 3974768), (5152, 3919220), (5842, 3456320), (6172, 3271520), (6440, 3135376), (7112, 2839120), (7360, 2743454), (7715, 2617216), (8128, 2484230), (8890, 2271296), (10160, 1987384), (10304, 1959610), (10801, 1869440), (11684, 1728160), (12344, 1635760), (12880, 1567688), (14224, 1419560), (14605, 1382528), (14720, 1371727), (15430, 1308608), (16256, 1242115), (17780, 1135648), (20320, 993692), (20447, 987520), (20608, 979805), (21602, 934720), (23368, 864080), (24688, 817880), (25760, 783844), (28448, 709780), (29210, 691264), (30860, 654304), (35489, 568960), (35560, 567824), (40640, 496846), (40894, 493760), (43204, 467360), (46736, 432040), (49376, 408940), (51520, 391922), (54005, 373888), (56896, 354890), (58420, 345632), (61720, 327152), (70978, 284480), (71120, 283912), (81280, 248423), (81788, 246880), (86408, 233680), (93472, 216020), (98752, 204470), (102235, 197504), (103040, 195961), (108010, 186944), (113792, 177445), (116840, 172816), (123440, 163576), (141956, 142240)]