240520320

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1$

素因数の和:508

約数の個数: 256

約数和(自身を含む): 881280000

約数和(自身を除く): 640759680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 32, 36, 40, 45, 48, 54, 60, 62, 64, 72, 80, 90, 93, 96, 108, 120, 124, 128, 135, 144, 155, 160, 180, 186, 192, 216, 240, 248, 270, 279, 288, 310, 320, 360, 372, 384, 432, 449, 465, 480, 496, 540, 558, 576, 620, 640, 720, 744, 837, 864, 898, 930, 960, 992, 1080, 1116, 1152, 1240, 1347, 1395, 1440, 1488, 1674, 1728, 1796, 1860, 1920, 1984, 2160, 2232, 2245, 2480, 2694, 2790, 2880, 2976, 3348, 3456, 3592, 3720, 3968, 4041, 4185, 4320, 4464, 4490, 4960, 5388, 5580, 5760, 5952, 6696, 6735, 7184, 7440, 8082, 8370, 8640, 8928, 8980, 9920, 10776, 11160, 11904, 12123, 13392, 13470, 13919, 14368, 14880, 16164, 16740, 17280, 17856, 17960, 19840, 20205, 21552, 22320, 24246, 26784, 26940, 27838, 28736, 29760, 32328, 33480, 35712, 35920, 40410, 41757, 43104, 44640, 48492, 53568, 53880, 55676, 57472, 59520, 60615, 64656, 66960, 69595, 71840, 80820, 83514, 86208, 89280, 96984, 107136, 107760, 111352, 121230, 125271, 129312, 133920, 139190, 143680, 161640, 167028, 172416, 178560, 193968, 208785, 215520, 222704, 242460, 250542, 258624, 267840, 278380, 287360, 323280, 334056, 375813, 387936, 417570, 431040, 445408, 484920, 501084, 517248, 535680, 556760, 626355, 646560, 668112, 751626, 775872, 835140, 862080, 890816, 969840, 1002168, 1113520, 1252710, 1293120, 1336224, 1503252, 1551744, 1670280, 1781632, 1879065, 1939680, 2004336, 2227040, 2505420, 2586240, 2672448, 3006504, 3340560, 3758130, 3879360, 4008672, 4454080, 5010840, 5344896, 6013008, 6681120, 7516260, 7758720, 8017344, 8908160, 10021680, 12026016, 13362240, 15032520, 16034688, 20043360, 24052032, 26724480, 30065040, 40086720, 48104064, 60130080, 80173440, 120260160, 240520320]

約数ペア:

[(1, 240520320), (2, 120260160), (3, 80173440), (4, 60130080), (5, 48104064), (6, 40086720), (8, 30065040), (9, 26724480), (10, 24052032), (12, 20043360), (15, 16034688), (16, 15032520), (18, 13362240), (20, 12026016), (24, 10021680), (27, 8908160), (30, 8017344), (31, 7758720), (32, 7516260), (36, 6681120), (40, 6013008), (45, 5344896), (48, 5010840), (54, 4454080), (60, 4008672), (62, 3879360), (64, 3758130), (72, 3340560), (80, 3006504), (90, 2672448), (93, 2586240), (96, 2505420), (108, 2227040), (120, 2004336), (124, 1939680), (128, 1879065), (135, 1781632), (144, 1670280), (155, 1551744), (160, 1503252), (180, 1336224), (186, 1293120), (192, 1252710), (216, 1113520), (240, 1002168), (248, 969840), (270, 890816), (279, 862080), (288, 835140), (310, 775872), (320, 751626), (360, 668112), (372, 646560), (384, 626355), (432, 556760), (449, 535680), (465, 517248), (480, 501084), (496, 484920), (540, 445408), (558, 431040), (576, 417570), (620, 387936), (640, 375813), (720, 334056), (744, 323280), (837, 287360), (864, 278380), (898, 267840), (930, 258624), (960, 250542), (992, 242460), (1080, 222704), (1116, 215520), (1152, 208785), (1240, 193968), (1347, 178560), (1395, 172416), (1440, 167028), (1488, 161640), (1674, 143680), (1728, 139190), (1796, 133920), (1860, 129312), (1920, 125271), (1984, 121230), (2160, 111352), (2232, 107760), (2245, 107136), (2480, 96984), (2694, 89280), (2790, 86208), (2880, 83514), (2976, 80820), (3348, 71840), (3456, 69595), (3592, 66960), (3720, 64656), (3968, 60615), (4041, 59520), (4185, 57472), (4320, 55676), (4464, 53880), (4490, 53568), (4960, 48492), (5388, 44640), (5580, 43104), (5760, 41757), (5952, 40410), (6696, 35920), (6735, 35712), (7184, 33480), (7440, 32328), (8082, 29760), (8370, 28736), (8640, 27838), (8928, 26940), (8980, 26784), (9920, 24246), (10776, 22320), (11160, 21552), (11904, 20205), (12123, 19840), (13392, 17960), (13470, 17856), (13919, 17280), (14368, 16740), (14880, 16164)]