261399040

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{503}}^1$

素因数の和:562

約数の個数: 160

約数和(自身を含む): 742452480

約数和(自身を除く): 481053440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 80, 112, 116, 128, 140, 145, 160, 203, 224, 232, 256, 280, 290, 320, 406, 448, 464, 503, 512, 560, 580, 640, 812, 896, 928, 1006, 1015, 1120, 1160, 1280, 1624, 1792, 1856, 2012, 2030, 2240, 2320, 2515, 2560, 3248, 3521, 3584, 3712, 4024, 4060, 4480, 4640, 5030, 6496, 7042, 7424, 8048, 8120, 8960, 9280, 10060, 12992, 14084, 14587, 14848, 16096, 16240, 17605, 17920, 18560, 20120, 25984, 28168, 29174, 32192, 32480, 35210, 37120, 40240, 51968, 56336, 58348, 64384, 64960, 70420, 72935, 74240, 80480, 102109, 103936, 112672, 116696, 128768, 129920, 140840, 145870, 160960, 204218, 225344, 233392, 257536, 259840, 281680, 291740, 321920, 408436, 450688, 466784, 510545, 519680, 563360, 583480, 643840, 816872, 901376, 933568, 1021090, 1126720, 1166960, 1287680, 1633744, 1802752, 1867136, 2042180, 2253440, 2333920, 3267488, 3734272, 4084360, 4506880, 4667840, 6534976, 7468544, 8168720, 9013760, 9335680, 13069952, 16337440, 18671360, 26139904, 32674880, 37342720, 52279808, 65349760, 130699520, 261399040]

約数ペア:

[(1, 261399040), (2, 130699520), (4, 65349760), (5, 52279808), (7, 37342720), (8, 32674880), (10, 26139904), (14, 18671360), (16, 16337440), (20, 13069952), (28, 9335680), (29, 9013760), (32, 8168720), (35, 7468544), (40, 6534976), (56, 4667840), (58, 4506880), (64, 4084360), (70, 3734272), (80, 3267488), (112, 2333920), (116, 2253440), (128, 2042180), (140, 1867136), (145, 1802752), (160, 1633744), (203, 1287680), (224, 1166960), (232, 1126720), (256, 1021090), (280, 933568), (290, 901376), (320, 816872), (406, 643840), (448, 583480), (464, 563360), (503, 519680), (512, 510545), (560, 466784), (580, 450688), (640, 408436), (812, 321920), (896, 291740), (928, 281680), (1006, 259840), (1015, 257536), (1120, 233392), (1160, 225344), (1280, 204218), (1624, 160960), (1792, 145870), (1856, 140840), (2012, 129920), (2030, 128768), (2240, 116696), (2320, 112672), (2515, 103936), (2560, 102109), (3248, 80480), (3521, 74240), (3584, 72935), (3712, 70420), (4024, 64960), (4060, 64384), (4480, 58348), (4640, 56336), (5030, 51968), (6496, 40240), (7042, 37120), (7424, 35210), (8048, 32480), (8120, 32192), (8960, 29174), (9280, 28168), (10060, 25984), (12992, 20120), (14084, 18560), (14587, 17920), (14848, 17605), (16096, 16240)]