245637120

素因数分解:

$2^{13}\times 3^1\times 5^1\times {\mathrm{1999}}^1$

素因数の和:2033

約数の個数: 112

約数和(自身を含む): 786384000

約数和(自身を除く): 540746880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1024, 1280, 1536, 1920, 1999, 2048, 2560, 3072, 3840, 3998, 4096, 5120, 5997, 6144, 7680, 7996, 8192, 9995, 10240, 11994, 12288, 15360, 15992, 19990, 20480, 23988, 24576, 29985, 30720, 31984, 39980, 40960, 47976, 59970, 61440, 63968, 79960, 95952, 119940, 122880, 127936, 159920, 191904, 239880, 255872, 319840, 383808, 479760, 511744, 639680, 767616, 959520, 1023488, 1279360, 1535232, 1919040, 2046976, 2558720, 3070464, 3838080, 4093952, 5117440, 6140928, 7676160, 8187904, 10234880, 12281856, 15352320, 16375808, 20469760, 24563712, 30704640, 40939520, 49127424, 61409280, 81879040, 122818560, 245637120]

約数ペア:

[(1, 245637120), (2, 122818560), (3, 81879040), (4, 61409280), (5, 49127424), (6, 40939520), (8, 30704640), (10, 24563712), (12, 20469760), (15, 16375808), (16, 15352320), (20, 12281856), (24, 10234880), (30, 8187904), (32, 7676160), (40, 6140928), (48, 5117440), (60, 4093952), (64, 3838080), (80, 3070464), (96, 2558720), (120, 2046976), (128, 1919040), (160, 1535232), (192, 1279360), (240, 1023488), (256, 959520), (320, 767616), (384, 639680), (480, 511744), (512, 479760), (640, 383808), (768, 319840), (960, 255872), (1024, 239880), (1280, 191904), (1536, 159920), (1920, 127936), (1999, 122880), (2048, 119940), (2560, 95952), (3072, 79960), (3840, 63968), (3998, 61440), (4096, 59970), (5120, 47976), (5997, 40960), (6144, 39980), (7680, 31984), (7996, 30720), (8192, 29985), (9995, 24576), (10240, 23988), (11994, 20480), (12288, 19990), (15360, 15992)]