128556720

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:434

約数の個数: 240

約数和(自身を含む): 475282080

約数和(自身を除く): 346725360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 81, 85, 90, 102, 108, 120, 135, 136, 144, 153, 162, 170, 180, 204, 216, 240, 243, 255, 270, 272, 306, 324, 340, 360, 389, 405, 408, 432, 459, 486, 510, 540, 612, 648, 680, 720, 765, 778, 810, 816, 918, 972, 1020, 1080, 1167, 1215, 1224, 1296, 1360, 1377, 1530, 1556, 1620, 1836, 1944, 1945, 2040, 2160, 2295, 2334, 2430, 2448, 2754, 3060, 3112, 3240, 3501, 3672, 3888, 3890, 4080, 4131, 4590, 4668, 4860, 5508, 5835, 6120, 6224, 6480, 6613, 6885, 7002, 7344, 7780, 8262, 9180, 9336, 9720, 10503, 11016, 11670, 12240, 13226, 13770, 14004, 15560, 16524, 17505, 18360, 18672, 19440, 19839, 20655, 21006, 22032, 23340, 26452, 27540, 28008, 31120, 31509, 33048, 33065, 35010, 36720, 39678, 41310, 42012, 46680, 52515, 52904, 55080, 56016, 59517, 63018, 66096, 66130, 70020, 79356, 82620, 84024, 93360, 94527, 99195, 105030, 105808, 110160, 119034, 126036, 132260, 140040, 157545, 158712, 165240, 168048, 178551, 189054, 198390, 210060, 238068, 252072, 264520, 280080, 297585, 315090, 317424, 330480, 357102, 378108, 396780, 420120, 472635, 476136, 504144, 529040, 535653, 595170, 630180, 714204, 756216, 793560, 840240, 892755, 945270, 952272, 1071306, 1190340, 1260360, 1428408, 1512432, 1587120, 1606959, 1785510, 1890540, 2142612, 2380680, 2520720, 2678265, 2856816, 3213918, 3571020, 3781080, 4285224, 4761360, 5356530, 6427836, 7142040, 7562160, 8034795, 8570448, 10713060, 12855672, 14284080, 16069590, 21426120, 25711344, 32139180, 42852240, 64278360, 128556720]

約数ペア:

[(1, 128556720), (2, 64278360), (3, 42852240), (4, 32139180), (5, 25711344), (6, 21426120), (8, 16069590), (9, 14284080), (10, 12855672), (12, 10713060), (15, 8570448), (16, 8034795), (17, 7562160), (18, 7142040), (20, 6427836), (24, 5356530), (27, 4761360), (30, 4285224), (34, 3781080), (36, 3571020), (40, 3213918), (45, 2856816), (48, 2678265), (51, 2520720), (54, 2380680), (60, 2142612), (68, 1890540), (72, 1785510), (80, 1606959), (81, 1587120), (85, 1512432), (90, 1428408), (102, 1260360), (108, 1190340), (120, 1071306), (135, 952272), (136, 945270), (144, 892755), (153, 840240), (162, 793560), (170, 756216), (180, 714204), (204, 630180), (216, 595170), (240, 535653), (243, 529040), (255, 504144), (270, 476136), (272, 472635), (306, 420120), (324, 396780), (340, 378108), (360, 357102), (389, 330480), (405, 317424), (408, 315090), (432, 297585), (459, 280080), (486, 264520), (510, 252072), (540, 238068), (612, 210060), (648, 198390), (680, 189054), (720, 178551), (765, 168048), (778, 165240), (810, 158712), (816, 157545), (918, 140040), (972, 132260), (1020, 126036), (1080, 119034), (1167, 110160), (1215, 105808), (1224, 105030), (1296, 99195), (1360, 94527), (1377, 93360), (1530, 84024), (1556, 82620), (1620, 79356), (1836, 70020), (1944, 66130), (1945, 66096), (2040, 63018), (2160, 59517), (2295, 56016), (2334, 55080), (2430, 52904), (2448, 52515), (2754, 46680), (3060, 42012), (3112, 41310), (3240, 39678), (3501, 36720), (3672, 35010), (3888, 33065), (3890, 33048), (4080, 31509), (4131, 31120), (4590, 28008), (4668, 27540), (4860, 26452), (5508, 23340), (5835, 22032), (6120, 21006), (6224, 20655), (6480, 19839), (6613, 19440), (6885, 18672), (7002, 18360), (7344, 17505), (7780, 16524), (8262, 15560), (9180, 14004), (9336, 13770), (9720, 13226), (10503, 12240), (11016, 11670)]