720101760

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{409}}^1$

素因数の和:569

約数の個数: 256

約数和(自身を含む): 2649715200

約数和(自身を除く): 1929613440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 131, 140, 160, 168, 192, 210, 224, 240, 262, 280, 320, 336, 384, 393, 409, 420, 448, 480, 524, 560, 640, 655, 672, 786, 818, 840, 896, 917, 960, 1048, 1120, 1227, 1310, 1344, 1572, 1636, 1680, 1834, 1920, 1965, 2045, 2096, 2240, 2454, 2620, 2688, 2751, 2863, 3144, 3272, 3360, 3668, 3930, 4090, 4192, 4480, 4585, 4908, 5240, 5502, 5726, 6135, 6288, 6544, 6720, 7336, 7860, 8180, 8384, 8589, 9170, 9816, 10480, 11004, 11452, 12270, 12576, 13088, 13440, 13755, 14315, 14672, 15720, 16360, 16768, 17178, 18340, 19632, 20960, 22008, 22904, 24540, 25152, 26176, 27510, 28630, 29344, 31440, 32720, 34356, 36680, 39264, 41920, 42945, 44016, 45808, 49080, 50304, 52352, 53579, 55020, 57260, 58688, 62880, 65440, 68712, 73360, 78528, 83840, 85890, 88032, 91616, 98160, 107158, 110040, 114520, 117376, 125760, 130880, 137424, 146720, 157056, 160737, 171780, 176064, 183232, 196320, 214316, 220080, 229040, 251520, 261760, 267895, 274848, 293440, 321474, 343560, 352128, 366464, 375053, 392640, 428632, 440160, 458080, 535790, 549696, 586880, 642948, 687120, 750106, 785280, 803685, 857264, 880320, 916160, 1071580, 1099392, 1125159, 1285896, 1374240, 1500212, 1607370, 1714528, 1760640, 1832320, 1875265, 2143160, 2250318, 2571792, 2748480, 3000424, 3214740, 3429056, 3750530, 4286320, 4500636, 5143584, 5496960, 5625795, 6000848, 6429480, 6858112, 7501060, 8572640, 9001272, 10287168, 11251590, 12001696, 12858960, 15002120, 17145280, 18002544, 20574336, 22503180, 24003392, 25717920, 30004240, 34290560, 36005088, 45006360, 48006784, 51435840, 60008480, 72010176, 90012720, 102871680, 120016960, 144020352, 180025440, 240033920, 360050880, 720101760]

約数ペア:

[(1, 720101760), (2, 360050880), (3, 240033920), (4, 180025440), (5, 144020352), (6, 120016960), (7, 102871680), (8, 90012720), (10, 72010176), (12, 60008480), (14, 51435840), (15, 48006784), (16, 45006360), (20, 36005088), (21, 34290560), (24, 30004240), (28, 25717920), (30, 24003392), (32, 22503180), (35, 20574336), (40, 18002544), (42, 17145280), (48, 15002120), (56, 12858960), (60, 12001696), (64, 11251590), (70, 10287168), (80, 9001272), (84, 8572640), (96, 7501060), (105, 6858112), (112, 6429480), (120, 6000848), (128, 5625795), (131, 5496960), (140, 5143584), (160, 4500636), (168, 4286320), (192, 3750530), (210, 3429056), (224, 3214740), (240, 3000424), (262, 2748480), (280, 2571792), (320, 2250318), (336, 2143160), (384, 1875265), (393, 1832320), (409, 1760640), (420, 1714528), (448, 1607370), (480, 1500212), (524, 1374240), (560, 1285896), (640, 1125159), (655, 1099392), (672, 1071580), (786, 916160), (818, 880320), (840, 857264), (896, 803685), (917, 785280), (960, 750106), (1048, 687120), (1120, 642948), (1227, 586880), (1310, 549696), (1344, 535790), (1572, 458080), (1636, 440160), (1680, 428632), (1834, 392640), (1920, 375053), (1965, 366464), (2045, 352128), (2096, 343560), (2240, 321474), (2454, 293440), (2620, 274848), (2688, 267895), (2751, 261760), (2863, 251520), (3144, 229040), (3272, 220080), (3360, 214316), (3668, 196320), (3930, 183232), (4090, 176064), (4192, 171780), (4480, 160737), (4585, 157056), (4908, 146720), (5240, 137424), (5502, 130880), (5726, 125760), (6135, 117376), (6288, 114520), (6544, 110040), (6720, 107158), (7336, 98160), (7860, 91616), (8180, 88032), (8384, 85890), (8589, 83840), (9170, 78528), (9816, 73360), (10480, 68712), (11004, 65440), (11452, 62880), (12270, 58688), (12576, 57260), (13088, 55020), (13440, 53579), (13755, 52352), (14315, 50304), (14672, 49080), (15720, 45808), (16360, 44016), (16768, 42945), (17178, 41920), (18340, 39264), (19632, 36680), (20960, 34356), (22008, 32720), (22904, 31440), (24540, 29344), (25152, 28630), (26176, 27510)]