28885080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:409

約数の個数: 128

約数和(自身を含む): 100154880

約数和(自身を除く): 71269800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 137, 140, 168, 210, 251, 274, 280, 411, 420, 502, 548, 685, 753, 822, 840, 959, 1004, 1096, 1255, 1370, 1506, 1644, 1757, 1918, 2008, 2055, 2510, 2740, 2877, 3012, 3288, 3514, 3765, 3836, 4110, 4795, 5020, 5271, 5480, 5754, 6024, 7028, 7530, 7672, 8220, 8785, 9590, 10040, 10542, 11508, 14056, 14385, 15060, 16440, 17570, 19180, 21084, 23016, 26355, 28770, 30120, 34387, 35140, 38360, 42168, 52710, 57540, 68774, 70280, 103161, 105420, 115080, 137548, 171935, 206322, 210840, 240709, 275096, 343870, 412644, 481418, 515805, 687740, 722127, 825288, 962836, 1031610, 1203545, 1375480, 1444254, 1925672, 2063220, 2407090, 2888508, 3610635, 4126440, 4814180, 5777016, 7221270, 9628360, 14442540, 28885080]

約数ペア:

[(1, 28885080), (2, 14442540), (3, 9628360), (4, 7221270), (5, 5777016), (6, 4814180), (7, 4126440), (8, 3610635), (10, 2888508), (12, 2407090), (14, 2063220), (15, 1925672), (20, 1444254), (21, 1375480), (24, 1203545), (28, 1031610), (30, 962836), (35, 825288), (40, 722127), (42, 687740), (56, 515805), (60, 481418), (70, 412644), (84, 343870), (105, 275096), (120, 240709), (137, 210840), (140, 206322), (168, 171935), (210, 137548), (251, 115080), (274, 105420), (280, 103161), (411, 70280), (420, 68774), (502, 57540), (548, 52710), (685, 42168), (753, 38360), (822, 35140), (840, 34387), (959, 30120), (1004, 28770), (1096, 26355), (1255, 23016), (1370, 21084), (1506, 19180), (1644, 17570), (1757, 16440), (1918, 15060), (2008, 14385), (2055, 14056), (2510, 11508), (2740, 10542), (2877, 10040), (3012, 9590), (3288, 8785), (3514, 8220), (3765, 7672), (3836, 7530), (4110, 7028), (4795, 6024), (5020, 5754), (5271, 5480)]