1280459520

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2711}}^1$

素因数の和:2779

約数の個数: 216

約数和(自身を含む): 4539985632

約数和(自身を除く): 3259526112

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 64, 72, 80, 82, 90, 96, 120, 123, 128, 144, 160, 164, 180, 192, 205, 240, 246, 256, 288, 320, 328, 360, 369, 384, 410, 480, 492, 576, 615, 640, 656, 720, 738, 768, 820, 960, 984, 1152, 1230, 1280, 1312, 1440, 1476, 1640, 1845, 1920, 1968, 2304, 2460, 2624, 2711, 2880, 2952, 3280, 3690, 3840, 3936, 4920, 5248, 5422, 5760, 5904, 6560, 7380, 7872, 8133, 9840, 10496, 10844, 11520, 11808, 13120, 13555, 14760, 15744, 16266, 19680, 21688, 23616, 24399, 26240, 27110, 29520, 31488, 32532, 39360, 40665, 43376, 47232, 48798, 52480, 54220, 59040, 65064, 78720, 81330, 86752, 94464, 97596, 108440, 111151, 118080, 121995, 130128, 157440, 162660, 173504, 195192, 216880, 222302, 236160, 243990, 260256, 325320, 333453, 347008, 390384, 433760, 444604, 472320, 487980, 520512, 555755, 650640, 666906, 694016, 780768, 867520, 889208, 975960, 1000359, 1041024, 1111510, 1301280, 1333812, 1561536, 1667265, 1735040, 1778416, 1951920, 2000718, 2082048, 2223020, 2602560, 2667624, 3123072, 3334530, 3470080, 3556832, 3903840, 4001436, 4446040, 5001795, 5205120, 5335248, 6246144, 6669060, 7113664, 7807680, 8002872, 8892080, 10003590, 10410240, 10670496, 13338120, 14227328, 15615360, 16005744, 17784160, 20007180, 21340992, 26676240, 28454656, 31230720, 32011488, 35568320, 40014360, 42681984, 53352480, 64022976, 71136640, 80028720, 85363968, 106704960, 128045952, 142273280, 160057440, 213409920, 256091904, 320114880, 426819840, 640229760, 1280459520]

約数ペア:

[(1, 1280459520), (2, 640229760), (3, 426819840), (4, 320114880), (5, 256091904), (6, 213409920), (8, 160057440), (9, 142273280), (10, 128045952), (12, 106704960), (15, 85363968), (16, 80028720), (18, 71136640), (20, 64022976), (24, 53352480), (30, 42681984), (32, 40014360), (36, 35568320), (40, 32011488), (41, 31230720), (45, 28454656), (48, 26676240), (60, 21340992), (64, 20007180), (72, 17784160), (80, 16005744), (82, 15615360), (90, 14227328), (96, 13338120), (120, 10670496), (123, 10410240), (128, 10003590), (144, 8892080), (160, 8002872), (164, 7807680), (180, 7113664), (192, 6669060), (205, 6246144), (240, 5335248), (246, 5205120), (256, 5001795), (288, 4446040), (320, 4001436), (328, 3903840), (360, 3556832), (369, 3470080), (384, 3334530), (410, 3123072), (480, 2667624), (492, 2602560), (576, 2223020), (615, 2082048), (640, 2000718), (656, 1951920), (720, 1778416), (738, 1735040), (768, 1667265), (820, 1561536), (960, 1333812), (984, 1301280), (1152, 1111510), (1230, 1041024), (1280, 1000359), (1312, 975960), (1440, 889208), (1476, 867520), (1640, 780768), (1845, 694016), (1920, 666906), (1968, 650640), (2304, 555755), (2460, 520512), (2624, 487980), (2711, 472320), (2880, 444604), (2952, 433760), (3280, 390384), (3690, 347008), (3840, 333453), (3936, 325320), (4920, 260256), (5248, 243990), (5422, 236160), (5760, 222302), (5904, 216880), (6560, 195192), (7380, 173504), (7872, 162660), (8133, 157440), (9840, 130128), (10496, 121995), (10844, 118080), (11520, 111151), (11808, 108440), (13120, 97596), (13555, 94464), (14760, 86752), (15744, 81330), (16266, 78720), (19680, 65064), (21688, 59040), (23616, 54220), (24399, 52480), (26240, 48798), (27110, 47232), (29520, 43376), (31488, 40665), (32532, 39360)]