208540360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{227}}^1$

素因数の和:455

約数の個数: 128

約数和(自身を含む): 573246720

約数和(自身を除く): 364706360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 193, 227, 238, 280, 340, 386, 454, 476, 595, 680, 772, 908, 952, 965, 1135, 1190, 1351, 1544, 1589, 1816, 1930, 2270, 2380, 2702, 3178, 3281, 3859, 3860, 4540, 4760, 5404, 6356, 6562, 6755, 7718, 7720, 7945, 9080, 10808, 12712, 13124, 13510, 15436, 15890, 16405, 19295, 22967, 26248, 27013, 27020, 30872, 31780, 32810, 38590, 43811, 45934, 54026, 54040, 63560, 65620, 77180, 87622, 91868, 108052, 114835, 131240, 135065, 154360, 175244, 183736, 216104, 219055, 229670, 270130, 306677, 350488, 438110, 459340, 540260, 613354, 744787, 876220, 918680, 1080520, 1226708, 1489574, 1533385, 1752440, 2453416, 2979148, 3066770, 3723935, 5213509, 5958296, 6133540, 7447870, 10427018, 12267080, 14895740, 20854036, 26067545, 29791480, 41708072, 52135090, 104270180, 208540360]

約数ペア:

[(1, 208540360), (2, 104270180), (4, 52135090), (5, 41708072), (7, 29791480), (8, 26067545), (10, 20854036), (14, 14895740), (17, 12267080), (20, 10427018), (28, 7447870), (34, 6133540), (35, 5958296), (40, 5213509), (56, 3723935), (68, 3066770), (70, 2979148), (85, 2453416), (119, 1752440), (136, 1533385), (140, 1489574), (170, 1226708), (193, 1080520), (227, 918680), (238, 876220), (280, 744787), (340, 613354), (386, 540260), (454, 459340), (476, 438110), (595, 350488), (680, 306677), (772, 270130), (908, 229670), (952, 219055), (965, 216104), (1135, 183736), (1190, 175244), (1351, 154360), (1544, 135065), (1589, 131240), (1816, 114835), (1930, 108052), (2270, 91868), (2380, 87622), (2702, 77180), (3178, 65620), (3281, 63560), (3859, 54040), (3860, 54026), (4540, 45934), (4760, 43811), (5404, 38590), (6356, 32810), (6562, 31780), (6755, 30872), (7718, 27020), (7720, 27013), (7945, 26248), (9080, 22967), (10808, 19295), (12712, 16405), (13124, 15890), (13510, 15436)]