20894160

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12437}}^1$

素因数の和:12460

約数の個数: 80

約数和(自身を含む): 74030976

約数和(自身を除く): 53136816

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12437, 24874, 37311, 49748, 62185, 74622, 87059, 99496, 124370, 149244, 174118, 186555, 198992, 248740, 261177, 298488, 348236, 373110, 435295, 497480, 522354, 596976, 696472, 746220, 870590, 994960, 1044708, 1305885, 1392944, 1492440, 1741180, 2089416, 2611770, 2984880, 3482360, 4178832, 5223540, 6964720, 10447080, 20894160]

約数ペア:

[(1, 20894160), (2, 10447080), (3, 6964720), (4, 5223540), (5, 4178832), (6, 3482360), (7, 2984880), (8, 2611770), (10, 2089416), (12, 1741180), (14, 1492440), (15, 1392944), (16, 1305885), (20, 1044708), (21, 994960), (24, 870590), (28, 746220), (30, 696472), (35, 596976), (40, 522354), (42, 497480), (48, 435295), (56, 373110), (60, 348236), (70, 298488), (80, 261177), (84, 248740), (105, 198992), (112, 186555), (120, 174118), (140, 149244), (168, 124370), (210, 99496), (240, 87059), (280, 74622), (336, 62185), (420, 49748), (560, 37311), (840, 24874), (1680, 12437)]