28260120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1979}}^1$

素因数の和:2017

約数の個数: 128

約数和(自身を含む): 102643200

約数和(自身を除く): 74383080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1428, 1785, 1979, 2040, 2380, 2856, 3570, 3958, 4760, 5937, 7140, 7916, 9895, 11874, 13853, 14280, 15832, 19790, 23748, 27706, 29685, 33643, 39580, 41559, 47496, 55412, 59370, 67286, 69265, 79160, 83118, 100929, 110824, 118740, 134572, 138530, 166236, 168215, 201858, 207795, 235501, 237480, 269144, 277060, 332472, 336430, 403716, 415590, 471002, 504645, 554120, 672860, 706503, 807432, 831180, 942004, 1009290, 1177505, 1345720, 1413006, 1662360, 1884008, 2018580, 2355010, 2826012, 3532515, 4037160, 4710020, 5652024, 7065030, 9420040, 14130060, 28260120]

約数ペア:

[(1, 28260120), (2, 14130060), (3, 9420040), (4, 7065030), (5, 5652024), (6, 4710020), (7, 4037160), (8, 3532515), (10, 2826012), (12, 2355010), (14, 2018580), (15, 1884008), (17, 1662360), (20, 1413006), (21, 1345720), (24, 1177505), (28, 1009290), (30, 942004), (34, 831180), (35, 807432), (40, 706503), (42, 672860), (51, 554120), (56, 504645), (60, 471002), (68, 415590), (70, 403716), (84, 336430), (85, 332472), (102, 277060), (105, 269144), (119, 237480), (120, 235501), (136, 207795), (140, 201858), (168, 168215), (170, 166236), (204, 138530), (210, 134572), (238, 118740), (255, 110824), (280, 100929), (340, 83118), (357, 79160), (408, 69265), (420, 67286), (476, 59370), (510, 55412), (595, 47496), (680, 41559), (714, 39580), (840, 33643), (952, 29685), (1020, 27706), (1190, 23748), (1428, 19790), (1785, 15832), (1979, 14280), (2040, 13853), (2380, 11874), (2856, 9895), (3570, 7916), (3958, 7140), (4760, 5937)]