661447080

素因数分解:

$2^3\times 3^3\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{431}}^1$

素因数の和:494

約数の個数: 384

約数和(自身を含む): 2659392000

約数和(自身を除く): 1997944920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 29, 30, 35, 36, 40, 42, 45, 49, 54, 56, 58, 60, 63, 70, 72, 84, 87, 90, 98, 105, 108, 116, 120, 126, 135, 140, 145, 147, 168, 174, 180, 189, 196, 203, 210, 216, 232, 245, 252, 261, 270, 280, 290, 294, 315, 348, 360, 378, 392, 406, 420, 431, 435, 441, 490, 504, 522, 540, 580, 588, 609, 630, 696, 735, 756, 783, 812, 840, 862, 870, 882, 945, 980, 1015, 1044, 1080, 1160, 1176, 1218, 1260, 1293, 1305, 1323, 1421, 1470, 1512, 1566, 1624, 1724, 1740, 1764, 1827, 1890, 1960, 2030, 2088, 2155, 2205, 2436, 2520, 2586, 2610, 2646, 2842, 2940, 3017, 3045, 3132, 3448, 3480, 3528, 3654, 3780, 3879, 3915, 4060, 4263, 4310, 4410, 4872, 5172, 5220, 5292, 5481, 5684, 5880, 6034, 6090, 6264, 6465, 6615, 7105, 7308, 7560, 7758, 7830, 8120, 8526, 8620, 8820, 9051, 9135, 10344, 10440, 10584, 10962, 11368, 11637, 12068, 12180, 12499, 12789, 12930, 13230, 14210, 14616, 15085, 15516, 15660, 17052, 17240, 17640, 18102, 18270, 19395, 21119, 21315, 21924, 23274, 24136, 24360, 24998, 25578, 25860, 26460, 27153, 27405, 28420, 30170, 31032, 31320, 34104, 36204, 36540, 37497, 38367, 38790, 42238, 42630, 43848, 45255, 46548, 49996, 51156, 51720, 52920, 54306, 54810, 56840, 58185, 60340, 62495, 63357, 63945, 72408, 73080, 74994, 76734, 77580, 81459, 84476, 85260, 87493, 90510, 93096, 99992, 102312, 105595, 108612, 109620, 112491, 116370, 120680, 124990, 126714, 127890, 135765, 149988, 153468, 155160, 162918, 168952, 170520, 174986, 181020, 187485, 190071, 191835, 211190, 217224, 219240, 224982, 232740, 249980, 253428, 255780, 262479, 271530, 299976, 306936, 316785, 325836, 337473, 349972, 362040, 374970, 380142, 383670, 407295, 422380, 437465, 449964, 465480, 499960, 506856, 511560, 524958, 543060, 562455, 570213, 612451, 633570, 651672, 674946, 699944, 749940, 760284, 767340, 787437, 814590, 844760, 874930, 899928, 950355, 1049916, 1086120, 1124910, 1140426, 1224902, 1267140, 1312395, 1349892, 1499880, 1520568, 1534680, 1574874, 1629180, 1687365, 1749860, 1837353, 1900710, 2099832, 2249820, 2280852, 2362311, 2449804, 2534280, 2624790, 2699784, 2851065, 3062255, 3149748, 3258360, 3374730, 3499720, 3674706, 3801420, 3937185, 4499640, 4561704, 4724622, 4899608, 5249580, 5512059, 5702130, 6124510, 6299496, 6749460, 7349412, 7602840, 7874370, 9186765, 9449244, 10499160, 11024118, 11404260, 11811555, 12249020, 13498920, 14698824, 15748740, 16536177, 18373530, 18898488, 22048236, 22808520, 23623110, 24498040, 27560295, 31497480, 33072354, 36747060, 44096472, 47246220, 55120590, 66144708, 73494120, 82680885, 94492440, 110241180, 132289416, 165361770, 220482360, 330723540, 661447080]

約数ペア:

[(1, 661447080), (2, 330723540), (3, 220482360), (4, 165361770), (5, 132289416), (6, 110241180), (7, 94492440), (8, 82680885), (9, 73494120), (10, 66144708), (12, 55120590), (14, 47246220), (15, 44096472), (18, 36747060), (20, 33072354), (21, 31497480), (24, 27560295), (27, 24498040), (28, 23623110), (29, 22808520), (30, 22048236), (35, 18898488), (36, 18373530), (40, 16536177), (42, 15748740), (45, 14698824), (49, 13498920), (54, 12249020), (56, 11811555), (58, 11404260), (60, 11024118), (63, 10499160), (70, 9449244), (72, 9186765), (84, 7874370), (87, 7602840), (90, 7349412), (98, 6749460), (105, 6299496), (108, 6124510), (116, 5702130), (120, 5512059), (126, 5249580), (135, 4899608), (140, 4724622), (145, 4561704), (147, 4499640), (168, 3937185), (174, 3801420), (180, 3674706), (189, 3499720), (196, 3374730), (203, 3258360), (210, 3149748), (216, 3062255), (232, 2851065), (245, 2699784), (252, 2624790), (261, 2534280), (270, 2449804), (280, 2362311), (290, 2280852), (294, 2249820), (315, 2099832), (348, 1900710), (360, 1837353), (378, 1749860), (392, 1687365), (406, 1629180), (420, 1574874), (431, 1534680), (435, 1520568), (441, 1499880), (490, 1349892), (504, 1312395), (522, 1267140), (540, 1224902), (580, 1140426), (588, 1124910), (609, 1086120), (630, 1049916), (696, 950355), (735, 899928), (756, 874930), (783, 844760), (812, 814590), (840, 787437), (862, 767340), (870, 760284), (882, 749940), (945, 699944), (980, 674946), (1015, 651672), (1044, 633570), (1080, 612451), (1160, 570213), (1176, 562455), (1218, 543060), (1260, 524958), (1293, 511560), (1305, 506856), (1323, 499960), (1421, 465480), (1470, 449964), (1512, 437465), (1566, 422380), (1624, 407295), (1724, 383670), (1740, 380142), (1764, 374970), (1827, 362040), (1890, 349972), (1960, 337473), (2030, 325836), (2088, 316785), (2155, 306936), (2205, 299976), (2436, 271530), (2520, 262479), (2586, 255780), (2610, 253428), (2646, 249980), (2842, 232740), (2940, 224982), (3017, 219240), (3045, 217224), (3132, 211190), (3448, 191835), (3480, 190071), (3528, 187485), (3654, 181020), (3780, 174986), (3879, 170520), (3915, 168952), (4060, 162918), (4263, 155160), (4310, 153468), (4410, 149988), (4872, 135765), (5172, 127890), (5220, 126714), (5292, 124990), (5481, 120680), (5684, 116370), (5880, 112491), (6034, 109620), (6090, 108612), (6264, 105595), (6465, 102312), (6615, 99992), (7105, 93096), (7308, 90510), (7560, 87493), (7758, 85260), (7830, 84476), (8120, 81459), (8526, 77580), (8620, 76734), (8820, 74994), (9051, 73080), (9135, 72408), (10344, 63945), (10440, 63357), (10584, 62495), (10962, 60340), (11368, 58185), (11637, 56840), (12068, 54810), (12180, 54306), (12499, 52920), (12789, 51720), (12930, 51156), (13230, 49996), (14210, 46548), (14616, 45255), (15085, 43848), (15516, 42630), (15660, 42238), (17052, 38790), (17240, 38367), (17640, 37497), (18102, 36540), (18270, 36204), (19395, 34104), (21119, 31320), (21315, 31032), (21924, 30170), (23274, 28420), (24136, 27405), (24360, 27153), (24998, 26460), (25578, 25860)]