217451280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:401

約数の個数: 160

約数和(自身を含む): 705312000

約数和(自身を除く): 487860720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 40, 48, 58, 60, 80, 87, 116, 120, 145, 157, 174, 199, 232, 240, 290, 314, 348, 398, 435, 464, 471, 580, 597, 628, 696, 785, 796, 870, 942, 995, 1160, 1194, 1256, 1392, 1570, 1592, 1740, 1884, 1990, 2320, 2355, 2388, 2512, 2985, 3140, 3184, 3480, 3768, 3980, 4553, 4710, 4776, 5771, 5970, 6280, 6960, 7536, 7960, 9106, 9420, 9552, 11542, 11940, 12560, 13659, 15920, 17313, 18212, 18840, 22765, 23084, 23880, 27318, 28855, 31243, 34626, 36424, 37680, 45530, 46168, 47760, 54636, 57710, 62486, 68295, 69252, 72848, 86565, 91060, 92336, 93729, 109272, 115420, 124972, 136590, 138504, 156215, 173130, 182120, 187458, 218544, 230840, 249944, 273180, 277008, 312430, 346260, 364240, 374916, 461680, 468645, 499888, 546360, 624860, 692520, 749832, 906047, 937290, 1092720, 1249720, 1385040, 1499664, 1812094, 1874580, 2499440, 2718141, 3624188, 3749160, 4530235, 5436282, 7248376, 7498320, 9060470, 10872564, 13590705, 14496752, 18120940, 21745128, 27181410, 36241880, 43490256, 54362820, 72483760, 108725640, 217451280]

約数ペア:

[(1, 217451280), (2, 108725640), (3, 72483760), (4, 54362820), (5, 43490256), (6, 36241880), (8, 27181410), (10, 21745128), (12, 18120940), (15, 14496752), (16, 13590705), (20, 10872564), (24, 9060470), (29, 7498320), (30, 7248376), (40, 5436282), (48, 4530235), (58, 3749160), (60, 3624188), (80, 2718141), (87, 2499440), (116, 1874580), (120, 1812094), (145, 1499664), (157, 1385040), (174, 1249720), (199, 1092720), (232, 937290), (240, 906047), (290, 749832), (314, 692520), (348, 624860), (398, 546360), (435, 499888), (464, 468645), (471, 461680), (580, 374916), (597, 364240), (628, 346260), (696, 312430), (785, 277008), (796, 273180), (870, 249944), (942, 230840), (995, 218544), (1160, 187458), (1194, 182120), (1256, 173130), (1392, 156215), (1570, 138504), (1592, 136590), (1740, 124972), (1884, 115420), (1990, 109272), (2320, 93729), (2355, 92336), (2388, 91060), (2512, 86565), (2985, 72848), (3140, 69252), (3184, 68295), (3480, 62486), (3768, 57710), (3980, 54636), (4553, 47760), (4710, 46168), (4776, 45530), (5771, 37680), (5970, 36424), (6280, 34626), (6960, 31243), (7536, 28855), (7960, 27318), (9106, 23880), (9420, 23084), (9552, 22765), (11542, 18840), (11940, 18212), (12560, 17313), (13659, 15920)]