161209440

素因数分解:

$2^5\times 3^4\times 5^1\times 7^1\times {\mathrm{1777}}^1$

素因数の和:1811

約数の個数: 240

約数和(自身を含む): 650577312

約数和(自身を除く): 489367872

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, 240, 252, 270, 280, 288, 315, 324, 336, 360, 378, 405, 420, 432, 480, 504, 540, 560, 567, 630, 648, 672, 720, 756, 810, 840, 864, 945, 1008, 1080, 1120, 1134, 1260, 1296, 1440, 1512, 1620, 1680, 1777, 1890, 2016, 2160, 2268, 2520, 2592, 2835, 3024, 3240, 3360, 3554, 3780, 4320, 4536, 5040, 5331, 5670, 6048, 6480, 7108, 7560, 8885, 9072, 10080, 10662, 11340, 12439, 12960, 14216, 15120, 15993, 17770, 18144, 21324, 22680, 24878, 26655, 28432, 30240, 31986, 35540, 37317, 42648, 45360, 47979, 49756, 53310, 56864, 62195, 63972, 71080, 74634, 79965, 85296, 90720, 95958, 99512, 106620, 111951, 124390, 127944, 142160, 143937, 149268, 159930, 170592, 186585, 191916, 199024, 213240, 223902, 239895, 248780, 255888, 284320, 287874, 298536, 319860, 335853, 373170, 383832, 398048, 426480, 447804, 479790, 497560, 511776, 559755, 575748, 597072, 639720, 671706, 719685, 746340, 767664, 852960, 895608, 959580, 995120, 1007559, 1119510, 1151496, 1194144, 1279440, 1343412, 1439370, 1492680, 1535328, 1679265, 1791216, 1919160, 1990240, 2015118, 2239020, 2302992, 2558880, 2686824, 2878740, 2985360, 3358530, 3582432, 3838320, 4030236, 4478040, 4605984, 5037795, 5373648, 5757480, 5970720, 6717060, 7676640, 8060472, 8956080, 10075590, 10747296, 11514960, 13434120, 16120944, 17912160, 20151180, 23029920, 26868240, 32241888, 40302360, 53736480, 80604720, 161209440]

約数ペア:

[(1, 161209440), (2, 80604720), (3, 53736480), (4, 40302360), (5, 32241888), (6, 26868240), (7, 23029920), (8, 20151180), (9, 17912160), (10, 16120944), (12, 13434120), (14, 11514960), (15, 10747296), (16, 10075590), (18, 8956080), (20, 8060472), (21, 7676640), (24, 6717060), (27, 5970720), (28, 5757480), (30, 5373648), (32, 5037795), (35, 4605984), (36, 4478040), (40, 4030236), (42, 3838320), (45, 3582432), (48, 3358530), (54, 2985360), (56, 2878740), (60, 2686824), (63, 2558880), (70, 2302992), (72, 2239020), (80, 2015118), (81, 1990240), (84, 1919160), (90, 1791216), (96, 1679265), (105, 1535328), (108, 1492680), (112, 1439370), (120, 1343412), (126, 1279440), (135, 1194144), (140, 1151496), (144, 1119510), (160, 1007559), (162, 995120), (168, 959580), (180, 895608), (189, 852960), (210, 767664), (216, 746340), (224, 719685), (240, 671706), (252, 639720), (270, 597072), (280, 575748), (288, 559755), (315, 511776), (324, 497560), (336, 479790), (360, 447804), (378, 426480), (405, 398048), (420, 383832), (432, 373170), (480, 335853), (504, 319860), (540, 298536), (560, 287874), (567, 284320), (630, 255888), (648, 248780), (672, 239895), (720, 223902), (756, 213240), (810, 199024), (840, 191916), (864, 186585), (945, 170592), (1008, 159930), (1080, 149268), (1120, 143937), (1134, 142160), (1260, 127944), (1296, 124390), (1440, 111951), (1512, 106620), (1620, 99512), (1680, 95958), (1777, 90720), (1890, 85296), (2016, 79965), (2160, 74634), (2268, 71080), (2520, 63972), (2592, 62195), (2835, 56864), (3024, 53310), (3240, 49756), (3360, 47979), (3554, 45360), (3780, 42648), (4320, 37317), (4536, 35540), (5040, 31986), (5331, 30240), (5670, 28432), (6048, 26655), (6480, 24878), (7108, 22680), (7560, 21324), (8885, 18144), (9072, 17770), (10080, 15993), (10662, 15120), (11340, 14216), (12439, 12960)]