2780250480

素因数分解:

$2^4\times 3^5\times 5^1\times 7^1\times {\mathrm{20431}}^1$

素因数の和:20466

約数の個数: 240

約数和(自身を含む): 11066625024

約数和(自身を除く): 8286374544

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 162, 168, 180, 189, 210, 216, 240, 243, 252, 270, 280, 315, 324, 336, 360, 378, 405, 420, 432, 486, 504, 540, 560, 567, 630, 648, 720, 756, 810, 840, 945, 972, 1008, 1080, 1134, 1215, 1260, 1296, 1512, 1620, 1680, 1701, 1890, 1944, 2160, 2268, 2430, 2520, 2835, 3024, 3240, 3402, 3780, 3888, 4536, 4860, 5040, 5670, 6480, 6804, 7560, 8505, 9072, 9720, 11340, 13608, 15120, 17010, 19440, 20431, 22680, 27216, 34020, 40862, 45360, 61293, 68040, 81724, 102155, 122586, 136080, 143017, 163448, 183879, 204310, 245172, 286034, 306465, 326896, 367758, 408620, 429051, 490344, 551637, 572068, 612930, 715085, 735516, 817240, 858102, 919395, 980688, 1103274, 1144136, 1225860, 1287153, 1430170, 1471032, 1634480, 1654911, 1716204, 1838790, 2145255, 2206548, 2288272, 2451720, 2574306, 2758185, 2860340, 2942064, 3309822, 3432408, 3677580, 3861459, 4290510, 4413096, 4903440, 4964733, 5148612, 5516370, 5720680, 6435765, 6619644, 6864816, 7355160, 7722918, 8274555, 8581020, 8826192, 9929466, 10297224, 11032740, 11441360, 11584377, 12871530, 13239288, 14710320, 15445836, 16549110, 17162040, 19307295, 19858932, 20594448, 22065480, 23168754, 24823665, 25743060, 26478576, 30891672, 33098220, 34324080, 34753131, 38614590, 39717864, 44130960, 46337508, 49647330, 51486120, 57921885, 61783344, 66196440, 69506262, 77229180, 79435728, 92675016, 99294660, 102972240, 115843770, 132392880, 139012524, 154458360, 173765655, 185350032, 198589320, 231687540, 278025048, 308916720, 347531310, 397178640, 463375080, 556050096, 695062620, 926750160, 1390125240, 2780250480]

約数ペア:

[(1, 2780250480), (2, 1390125240), (3, 926750160), (4, 695062620), (5, 556050096), (6, 463375080), (7, 397178640), (8, 347531310), (9, 308916720), (10, 278025048), (12, 231687540), (14, 198589320), (15, 185350032), (16, 173765655), (18, 154458360), (20, 139012524), (21, 132392880), (24, 115843770), (27, 102972240), (28, 99294660), (30, 92675016), (35, 79435728), (36, 77229180), (40, 69506262), (42, 66196440), (45, 61783344), (48, 57921885), (54, 51486120), (56, 49647330), (60, 46337508), (63, 44130960), (70, 39717864), (72, 38614590), (80, 34753131), (81, 34324080), (84, 33098220), (90, 30891672), (105, 26478576), (108, 25743060), (112, 24823665), (120, 23168754), (126, 22065480), (135, 20594448), (140, 19858932), (144, 19307295), (162, 17162040), (168, 16549110), (180, 15445836), (189, 14710320), (210, 13239288), (216, 12871530), (240, 11584377), (243, 11441360), (252, 11032740), (270, 10297224), (280, 9929466), (315, 8826192), (324, 8581020), (336, 8274555), (360, 7722918), (378, 7355160), (405, 6864816), (420, 6619644), (432, 6435765), (486, 5720680), (504, 5516370), (540, 5148612), (560, 4964733), (567, 4903440), (630, 4413096), (648, 4290510), (720, 3861459), (756, 3677580), (810, 3432408), (840, 3309822), (945, 2942064), (972, 2860340), (1008, 2758185), (1080, 2574306), (1134, 2451720), (1215, 2288272), (1260, 2206548), (1296, 2145255), (1512, 1838790), (1620, 1716204), (1680, 1654911), (1701, 1634480), (1890, 1471032), (1944, 1430170), (2160, 1287153), (2268, 1225860), (2430, 1144136), (2520, 1103274), (2835, 980688), (3024, 919395), (3240, 858102), (3402, 817240), (3780, 735516), (3888, 715085), (4536, 612930), (4860, 572068), (5040, 551637), (5670, 490344), (6480, 429051), (6804, 408620), (7560, 367758), (8505, 326896), (9072, 306465), (9720, 286034), (11340, 245172), (13608, 204310), (15120, 183879), (17010, 163448), (19440, 143017), (20431, 136080), (22680, 122586), (27216, 102155), (34020, 81724), (40862, 68040), (45360, 61293)]