21605760

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1$

素因数の和:78

約数の個数: 288

約数和(自身を含む): 84651840

約数和(自身を除く): 63046080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 31, 32, 33, 36, 40, 44, 45, 48, 55, 60, 62, 64, 66, 72, 80, 88, 90, 93, 96, 99, 110, 120, 121, 124, 128, 132, 144, 155, 160, 165, 176, 180, 186, 192, 198, 220, 240, 242, 248, 264, 279, 288, 310, 320, 330, 341, 352, 360, 363, 372, 384, 396, 440, 465, 480, 484, 495, 496, 528, 558, 576, 605, 620, 640, 660, 682, 704, 720, 726, 744, 792, 880, 930, 960, 968, 990, 992, 1023, 1056, 1089, 1116, 1152, 1210, 1240, 1320, 1364, 1395, 1408, 1440, 1452, 1488, 1584, 1705, 1760, 1815, 1860, 1920, 1936, 1980, 1984, 2046, 2112, 2178, 2232, 2420, 2480, 2640, 2728, 2790, 2880, 2904, 2976, 3069, 3168, 3410, 3520, 3630, 3720, 3751, 3872, 3960, 3968, 4092, 4224, 4356, 4464, 4840, 4960, 5115, 5280, 5445, 5456, 5580, 5760, 5808, 5952, 6138, 6336, 6820, 7040, 7260, 7440, 7502, 7744, 7920, 8184, 8712, 8928, 9680, 9920, 10230, 10560, 10890, 10912, 11160, 11253, 11616, 11904, 12276, 12672, 13640, 14520, 14880, 15004, 15345, 15488, 15840, 16368, 17424, 17856, 18755, 19360, 19840, 20460, 21120, 21780, 21824, 22320, 22506, 23232, 24552, 27280, 29040, 29760, 30008, 30690, 31680, 32736, 33759, 34848, 35712, 37510, 38720, 40920, 43560, 43648, 44640, 45012, 46464, 49104, 54560, 56265, 58080, 59520, 60016, 61380, 63360, 65472, 67518, 69696, 75020, 77440, 81840, 87120, 89280, 90024, 98208, 109120, 112530, 116160, 120032, 122760, 130944, 135036, 139392, 150040, 163680, 168795, 174240, 178560, 180048, 196416, 218240, 225060, 232320, 240064, 245520, 270072, 300080, 327360, 337590, 348480, 360096, 392832, 450120, 480128, 491040, 540144, 600160, 654720, 675180, 696960, 720192, 900240, 982080, 1080288, 1200320, 1350360, 1440384, 1800480, 1964160, 2160576, 2400640, 2700720, 3600960, 4321152, 5401440, 7201920, 10802880, 21605760]

約数ペア:

[(1, 21605760), (2, 10802880), (3, 7201920), (4, 5401440), (5, 4321152), (6, 3600960), (8, 2700720), (9, 2400640), (10, 2160576), (11, 1964160), (12, 1800480), (15, 1440384), (16, 1350360), (18, 1200320), (20, 1080288), (22, 982080), (24, 900240), (30, 720192), (31, 696960), (32, 675180), (33, 654720), (36, 600160), (40, 540144), (44, 491040), (45, 480128), (48, 450120), (55, 392832), (60, 360096), (62, 348480), (64, 337590), (66, 327360), (72, 300080), (80, 270072), (88, 245520), (90, 240064), (93, 232320), (96, 225060), (99, 218240), (110, 196416), (120, 180048), (121, 178560), (124, 174240), (128, 168795), (132, 163680), (144, 150040), (155, 139392), (160, 135036), (165, 130944), (176, 122760), (180, 120032), (186, 116160), (192, 112530), (198, 109120), (220, 98208), (240, 90024), (242, 89280), (248, 87120), (264, 81840), (279, 77440), (288, 75020), (310, 69696), (320, 67518), (330, 65472), (341, 63360), (352, 61380), (360, 60016), (363, 59520), (372, 58080), (384, 56265), (396, 54560), (440, 49104), (465, 46464), (480, 45012), (484, 44640), (495, 43648), (496, 43560), (528, 40920), (558, 38720), (576, 37510), (605, 35712), (620, 34848), (640, 33759), (660, 32736), (682, 31680), (704, 30690), (720, 30008), (726, 29760), (744, 29040), (792, 27280), (880, 24552), (930, 23232), (960, 22506), (968, 22320), (990, 21824), (992, 21780), (1023, 21120), (1056, 20460), (1089, 19840), (1116, 19360), (1152, 18755), (1210, 17856), (1240, 17424), (1320, 16368), (1364, 15840), (1395, 15488), (1408, 15345), (1440, 15004), (1452, 14880), (1488, 14520), (1584, 13640), (1705, 12672), (1760, 12276), (1815, 11904), (1860, 11616), (1920, 11253), (1936, 11160), (1980, 10912), (1984, 10890), (2046, 10560), (2112, 10230), (2178, 9920), (2232, 9680), (2420, 8928), (2480, 8712), (2640, 8184), (2728, 7920), (2790, 7744), (2880, 7502), (2904, 7440), (2976, 7260), (3069, 7040), (3168, 6820), (3410, 6336), (3520, 6138), (3630, 5952), (3720, 5808), (3751, 5760), (3872, 5580), (3960, 5456), (3968, 5445), (4092, 5280), (4224, 5115), (4356, 4960), (4464, 4840)]