217818720

素因数分解:

$2^5\times 3^4\times 5^1\times 7^5$

素因数の和:62

約数の個数: 360

約数和(自身を含む): 896830704

約数和(自身を除く): 679011984

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, 49, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 96, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 160, 162, 168, 180, 189, 196, 210, 216, 224, 240, 245, 252, 270, 280, 288, 294, 315, 324, 336, 343, 360, 378, 392, 405, 420, 432, 441, 480, 490, 504, 540, 560, 567, 588, 630, 648, 672, 686, 720, 735, 756, 784, 810, 840, 864, 882, 945, 980, 1008, 1029, 1080, 1120, 1134, 1176, 1260, 1296, 1323, 1372, 1440, 1470, 1512, 1568, 1620, 1680, 1715, 1764, 1890, 1960, 2016, 2058, 2160, 2205, 2268, 2352, 2401, 2520, 2592, 2646, 2744, 2835, 2940, 3024, 3087, 3240, 3360, 3430, 3528, 3780, 3920, 3969, 4116, 4320, 4410, 4536, 4704, 4802, 5040, 5145, 5292, 5488, 5670, 5880, 6048, 6174, 6480, 6615, 6860, 7056, 7203, 7560, 7840, 7938, 8232, 8820, 9072, 9261, 9604, 10080, 10290, 10584, 10976, 11340, 11760, 12005, 12348, 12960, 13230, 13720, 14112, 14406, 15120, 15435, 15876, 16464, 16807, 17640, 18144, 18522, 19208, 19845, 20580, 21168, 21609, 22680, 23520, 24010, 24696, 26460, 27440, 27783, 28812, 30240, 30870, 31752, 32928, 33614, 35280, 36015, 37044, 38416, 39690, 41160, 42336, 43218, 45360, 46305, 48020, 49392, 50421, 52920, 54880, 55566, 57624, 61740, 63504, 64827, 67228, 70560, 72030, 74088, 76832, 79380, 82320, 84035, 86436, 90720, 92610, 96040, 98784, 100842, 105840, 108045, 111132, 115248, 123480, 127008, 129654, 134456, 138915, 144060, 148176, 151263, 158760, 164640, 168070, 172872, 185220, 192080, 194481, 201684, 211680, 216090, 222264, 230496, 246960, 252105, 259308, 268912, 277830, 288120, 296352, 302526, 317520, 324135, 336140, 345744, 370440, 384160, 388962, 403368, 432180, 444528, 453789, 493920, 504210, 518616, 537824, 555660, 576240, 605052, 635040, 648270, 672280, 691488, 740880, 756315, 777924, 806736, 864360, 889056, 907578, 972405, 1008420, 1037232, 1111320, 1152480, 1210104, 1296540, 1344560, 1361367, 1481760, 1512630, 1555848, 1613472, 1728720, 1815156, 1944810, 2016840, 2074464, 2222640, 2268945, 2420208, 2593080, 2689120, 2722734, 3025260, 3111696, 3457440, 3630312, 3889620, 4033680, 4445280, 4537890, 4840416, 5186160, 5445468, 6050520, 6223392, 6806835, 7260624, 7779240, 8067360, 9075780, 10372320, 10890936, 12101040, 13613670, 14521248, 15558480, 18151560, 21781872, 24202080, 27227340, 31116960, 36303120, 43563744, 54454680, 72606240, 108909360, 217818720]

約数ペア:

[(1, 217818720), (2, 108909360), (3, 72606240), (4, 54454680), (5, 43563744), (6, 36303120), (7, 31116960), (8, 27227340), (9, 24202080), (10, 21781872), (12, 18151560), (14, 15558480), (15, 14521248), (16, 13613670), (18, 12101040), (20, 10890936), (21, 10372320), (24, 9075780), (27, 8067360), (28, 7779240), (30, 7260624), (32, 6806835), (35, 6223392), (36, 6050520), (40, 5445468), (42, 5186160), (45, 4840416), (48, 4537890), (49, 4445280), (54, 4033680), (56, 3889620), (60, 3630312), (63, 3457440), (70, 3111696), (72, 3025260), (80, 2722734), (81, 2689120), (84, 2593080), (90, 2420208), (96, 2268945), (98, 2222640), (105, 2074464), (108, 2016840), (112, 1944810), (120, 1815156), (126, 1728720), (135, 1613472), (140, 1555848), (144, 1512630), (147, 1481760), (160, 1361367), (162, 1344560), (168, 1296540), (180, 1210104), (189, 1152480), (196, 1111320), (210, 1037232), (216, 1008420), (224, 972405), (240, 907578), (245, 889056), (252, 864360), (270, 806736), (280, 777924), (288, 756315), (294, 740880), (315, 691488), (324, 672280), (336, 648270), (343, 635040), (360, 605052), (378, 576240), (392, 555660), (405, 537824), (420, 518616), (432, 504210), (441, 493920), (480, 453789), (490, 444528), (504, 432180), (540, 403368), (560, 388962), (567, 384160), (588, 370440), (630, 345744), (648, 336140), (672, 324135), (686, 317520), (720, 302526), (735, 296352), (756, 288120), (784, 277830), (810, 268912), (840, 259308), (864, 252105), (882, 246960), (945, 230496), (980, 222264), (1008, 216090), (1029, 211680), (1080, 201684), (1120, 194481), (1134, 192080), (1176, 185220), (1260, 172872), (1296, 168070), (1323, 164640), (1372, 158760), (1440, 151263), (1470, 148176), (1512, 144060), (1568, 138915), (1620, 134456), (1680, 129654), (1715, 127008), (1764, 123480), (1890, 115248), (1960, 111132), (2016, 108045), (2058, 105840), (2160, 100842), (2205, 98784), (2268, 96040), (2352, 92610), (2401, 90720), (2520, 86436), (2592, 84035), (2646, 82320), (2744, 79380), (2835, 76832), (2940, 74088), (3024, 72030), (3087, 70560), (3240, 67228), (3360, 64827), (3430, 63504), (3528, 61740), (3780, 57624), (3920, 55566), (3969, 54880), (4116, 52920), (4320, 50421), (4410, 49392), (4536, 48020), (4704, 46305), (4802, 45360), (5040, 43218), (5145, 42336), (5292, 41160), (5488, 39690), (5670, 38416), (5880, 37044), (6048, 36015), (6174, 35280), (6480, 33614), (6615, 32928), (6860, 31752), (7056, 30870), (7203, 30240), (7560, 28812), (7840, 27783), (7938, 27440), (8232, 26460), (8820, 24696), (9072, 24010), (9261, 23520), (9604, 22680), (10080, 21609), (10290, 21168), (10584, 20580), (10976, 19845), (11340, 19208), (11760, 18522), (12005, 18144), (12348, 17640), (12960, 16807), (13230, 16464), (13720, 15876), (14112, 15435), (14406, 15120)]