21208080520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1\times {\mathrm{3547}}^1$

素因数の和:3803

約数の個数: 128

約数和(自身を含む): 52971356160

約数和(自身を除く): 31763275640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 107, 110, 127, 214, 220, 254, 428, 440, 508, 535, 635, 856, 1016, 1070, 1177, 1270, 1397, 2140, 2354, 2540, 2794, 3547, 4280, 4708, 5080, 5588, 5885, 6985, 7094, 9416, 11176, 11770, 13589, 13970, 14188, 17735, 23540, 27178, 27940, 28376, 35470, 39017, 47080, 54356, 55880, 67945, 70940, 78034, 108712, 135890, 141880, 149479, 156068, 195085, 271780, 298958, 312136, 379529, 390170, 450469, 543560, 597916, 747395, 759058, 780340, 900938, 1195832, 1494790, 1518116, 1560680, 1801876, 1897645, 2252345, 2989580, 3036232, 3603752, 3795290, 4174819, 4504690, 4955159, 5979160, 7590580, 8349638, 9009380, 9910318, 15181160, 16699276, 18018760, 19820636, 20874095, 24775795, 33398552, 39641272, 41748190, 48200183, 49551590, 83496380, 96400366, 99103180, 166992760, 192800732, 198206360, 241000915, 385601464, 482001830, 530202013, 964003660, 1060404026, 1928007320, 2120808052, 2651010065, 4241616104, 5302020130, 10604040260, 21208080520]

約数ペア:

[(1, 21208080520), (2, 10604040260), (4, 5302020130), (5, 4241616104), (8, 2651010065), (10, 2120808052), (11, 1928007320), (20, 1060404026), (22, 964003660), (40, 530202013), (44, 482001830), (55, 385601464), (88, 241000915), (107, 198206360), (110, 192800732), (127, 166992760), (214, 99103180), (220, 96400366), (254, 83496380), (428, 49551590), (440, 48200183), (508, 41748190), (535, 39641272), (635, 33398552), (856, 24775795), (1016, 20874095), (1070, 19820636), (1177, 18018760), (1270, 16699276), (1397, 15181160), (2140, 9910318), (2354, 9009380), (2540, 8349638), (2794, 7590580), (3547, 5979160), (4280, 4955159), (4708, 4504690), (5080, 4174819), (5588, 3795290), (5885, 3603752), (6985, 3036232), (7094, 2989580), (9416, 2252345), (11176, 1897645), (11770, 1801876), (13589, 1560680), (13970, 1518116), (14188, 1494790), (17735, 1195832), (23540, 900938), (27178, 780340), (27940, 759058), (28376, 747395), (35470, 597916), (39017, 543560), (47080, 450469), (54356, 390170), (55880, 379529), (67945, 312136), (70940, 298958), (78034, 271780), (108712, 195085), (135890, 156068), (141880, 149479)]