205506720

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:285

約数の個数: 240

約数和(自身を含む): 737113608

約数和(自身を除く): 531606888

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 101, 108, 120, 135, 144, 157, 160, 162, 180, 202, 216, 240, 270, 288, 303, 314, 324, 360, 404, 405, 432, 471, 480, 505, 540, 606, 628, 648, 720, 785, 808, 810, 864, 909, 942, 1010, 1080, 1212, 1256, 1296, 1413, 1440, 1515, 1570, 1616, 1620, 1818, 1884, 2020, 2160, 2355, 2424, 2512, 2592, 2727, 2826, 3030, 3140, 3232, 3240, 3636, 3768, 4040, 4239, 4320, 4545, 4710, 4848, 5024, 5454, 5652, 6060, 6280, 6480, 7065, 7272, 7536, 8080, 8181, 8478, 9090, 9420, 9696, 10908, 11304, 12120, 12560, 12717, 12960, 13635, 14130, 14544, 15072, 15857, 16160, 16362, 16956, 18180, 18840, 21195, 21816, 22608, 24240, 25120, 25434, 27270, 28260, 29088, 31714, 32724, 33912, 36360, 37680, 40905, 42390, 43632, 45216, 47571, 48480, 50868, 54540, 56520, 63428, 63585, 65448, 67824, 72720, 75360, 79285, 81810, 84780, 87264, 95142, 101736, 109080, 113040, 126856, 127170, 130896, 135648, 142713, 145440, 158570, 163620, 169560, 190284, 203472, 218160, 226080, 237855, 253712, 254340, 261792, 285426, 317140, 327240, 339120, 380568, 406944, 428139, 436320, 475710, 507424, 508680, 570852, 634280, 654480, 678240, 713565, 761136, 856278, 951420, 1017360, 1141704, 1268560, 1284417, 1308960, 1427130, 1522272, 1712556, 1902840, 2034720, 2140695, 2283408, 2537120, 2568834, 2854260, 3425112, 3805680, 4281390, 4566816, 5137668, 5708520, 6422085, 6850224, 7611360, 8562780, 10275336, 11417040, 12844170, 13700448, 17125560, 20550672, 22834080, 25688340, 34251120, 41101344, 51376680, 68502240, 102753360, 205506720]

約数ペア:

[(1, 205506720), (2, 102753360), (3, 68502240), (4, 51376680), (5, 41101344), (6, 34251120), (8, 25688340), (9, 22834080), (10, 20550672), (12, 17125560), (15, 13700448), (16, 12844170), (18, 11417040), (20, 10275336), (24, 8562780), (27, 7611360), (30, 6850224), (32, 6422085), (36, 5708520), (40, 5137668), (45, 4566816), (48, 4281390), (54, 3805680), (60, 3425112), (72, 2854260), (80, 2568834), (81, 2537120), (90, 2283408), (96, 2140695), (101, 2034720), (108, 1902840), (120, 1712556), (135, 1522272), (144, 1427130), (157, 1308960), (160, 1284417), (162, 1268560), (180, 1141704), (202, 1017360), (216, 951420), (240, 856278), (270, 761136), (288, 713565), (303, 678240), (314, 654480), (324, 634280), (360, 570852), (404, 508680), (405, 507424), (432, 475710), (471, 436320), (480, 428139), (505, 406944), (540, 380568), (606, 339120), (628, 327240), (648, 317140), (720, 285426), (785, 261792), (808, 254340), (810, 253712), (864, 237855), (909, 226080), (942, 218160), (1010, 203472), (1080, 190284), (1212, 169560), (1256, 163620), (1296, 158570), (1413, 145440), (1440, 142713), (1515, 135648), (1570, 130896), (1616, 127170), (1620, 126856), (1818, 113040), (1884, 109080), (2020, 101736), (2160, 95142), (2355, 87264), (2424, 84780), (2512, 81810), (2592, 79285), (2727, 75360), (2826, 72720), (3030, 67824), (3140, 65448), (3232, 63585), (3240, 63428), (3636, 56520), (3768, 54540), (4040, 50868), (4239, 48480), (4320, 47571), (4545, 45216), (4710, 43632), (4848, 42390), (5024, 40905), (5454, 37680), (5652, 36360), (6060, 33912), (6280, 32724), (6480, 31714), (7065, 29088), (7272, 28260), (7536, 27270), (8080, 25434), (8181, 25120), (8478, 24240), (9090, 22608), (9420, 21816), (9696, 21195), (10908, 18840), (11304, 18180), (12120, 16956), (12560, 16362), (12717, 16160), (12960, 15857), (13635, 15072), (14130, 14544)]