20774880

素因数分解:

$2^5\times 3^4\times 5^1\times 7^1\times {\mathrm{229}}^1$

素因数の和:263

約数の個数: 240

約数和(自身を含む): 84157920

約数和(自身を除く): 63383040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 189, 210, 216, 224, 229, 240, 252, 270, 280, 288, 315, 324, 336, 360, 378, 405, 420, 432, 458, 480, 504, 540, 560, 567, 630, 648, 672, 687, 720, 756, 810, 840, 864, 916, 945, 1008, 1080, 1120, 1134, 1145, 1260, 1296, 1374, 1440, 1512, 1603, 1620, 1680, 1832, 1890, 2016, 2061, 2160, 2268, 2290, 2520, 2592, 2748, 2835, 3024, 3206, 3240, 3360, 3435, 3664, 3780, 4122, 4320, 4536, 4580, 4809, 5040, 5496, 5670, 6048, 6183, 6412, 6480, 6870, 7328, 7560, 8015, 8244, 9072, 9160, 9618, 10080, 10305, 10992, 11340, 12366, 12824, 12960, 13740, 14427, 15120, 16030, 16488, 18144, 18320, 18549, 19236, 20610, 21984, 22680, 24045, 24732, 25648, 27480, 28854, 30240, 30915, 32060, 32976, 36640, 37098, 38472, 41220, 43281, 45360, 48090, 49464, 51296, 54960, 57708, 61830, 64120, 65952, 72135, 74196, 76944, 82440, 86562, 90720, 92745, 96180, 98928, 109920, 115416, 123660, 128240, 129843, 144270, 148392, 153888, 164880, 173124, 185490, 192360, 197856, 216405, 230832, 247320, 256480, 259686, 288540, 296784, 329760, 346248, 370980, 384720, 432810, 461664, 494640, 519372, 577080, 593568, 649215, 692496, 741960, 769440, 865620, 989280, 1038744, 1154160, 1298430, 1384992, 1483920, 1731240, 2077488, 2308320, 2596860, 2967840, 3462480, 4154976, 5193720, 6924960, 10387440, 20774880]

約数ペア:

[(1, 20774880), (2, 10387440), (3, 6924960), (4, 5193720), (5, 4154976), (6, 3462480), (7, 2967840), (8, 2596860), (9, 2308320), (10, 2077488), (12, 1731240), (14, 1483920), (15, 1384992), (16, 1298430), (18, 1154160), (20, 1038744), (21, 989280), (24, 865620), (27, 769440), (28, 741960), (30, 692496), (32, 649215), (35, 593568), (36, 577080), (40, 519372), (42, 494640), (45, 461664), (48, 432810), (54, 384720), (56, 370980), (60, 346248), (63, 329760), (70, 296784), (72, 288540), (80, 259686), (81, 256480), (84, 247320), (90, 230832), (96, 216405), (105, 197856), (108, 192360), (112, 185490), (120, 173124), (126, 164880), (135, 153888), (140, 148392), (144, 144270), (160, 129843), (162, 128240), (168, 123660), (180, 115416), (189, 109920), (210, 98928), (216, 96180), (224, 92745), (229, 90720), (240, 86562), (252, 82440), (270, 76944), (280, 74196), (288, 72135), (315, 65952), (324, 64120), (336, 61830), (360, 57708), (378, 54960), (405, 51296), (420, 49464), (432, 48090), (458, 45360), (480, 43281), (504, 41220), (540, 38472), (560, 37098), (567, 36640), (630, 32976), (648, 32060), (672, 30915), (687, 30240), (720, 28854), (756, 27480), (810, 25648), (840, 24732), (864, 24045), (916, 22680), (945, 21984), (1008, 20610), (1080, 19236), (1120, 18549), (1134, 18320), (1145, 18144), (1260, 16488), (1296, 16030), (1374, 15120), (1440, 14427), (1512, 13740), (1603, 12960), (1620, 12824), (1680, 12366), (1832, 11340), (1890, 10992), (2016, 10305), (2061, 10080), (2160, 9618), (2268, 9160), (2290, 9072), (2520, 8244), (2592, 8015), (2748, 7560), (2835, 7328), (3024, 6870), (3206, 6480), (3240, 6412), (3360, 6183), (3435, 6048), (3664, 5670), (3780, 5496), (4122, 5040), (4320, 4809), (4536, 4580)]