254081280

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{521}}^1$

素因数の和:672

約数の個数: 144

約数和(自身を含む): 819431424

約数和(自身を除く): 565350144

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, 127, 128, 160, 192, 240, 254, 256, 320, 381, 384, 480, 508, 521, 635, 640, 762, 768, 960, 1016, 1042, 1270, 1280, 1524, 1563, 1905, 1920, 2032, 2084, 2540, 2605, 3048, 3126, 3810, 3840, 4064, 4168, 5080, 5210, 6096, 6252, 7620, 7815, 8128, 8336, 10160, 10420, 12192, 12504, 15240, 15630, 16256, 16672, 20320, 20840, 24384, 25008, 30480, 31260, 32512, 33344, 40640, 41680, 48768, 50016, 60960, 62520, 66167, 66688, 81280, 83360, 97536, 100032, 121920, 125040, 132334, 133376, 162560, 166720, 198501, 200064, 243840, 250080, 264668, 330835, 333440, 397002, 400128, 487680, 500160, 529336, 661670, 666880, 794004, 992505, 1000320, 1058672, 1323340, 1588008, 1985010, 2000640, 2117344, 2646680, 3176016, 3970020, 4234688, 5293360, 6352032, 7940040, 8469376, 10586720, 12704064, 15880080, 16938752, 21173440, 25408128, 31760160, 42346880, 50816256, 63520320, 84693760, 127040640, 254081280]

約数ペア:

[(1, 254081280), (2, 127040640), (3, 84693760), (4, 63520320), (5, 50816256), (6, 42346880), (8, 31760160), (10, 25408128), (12, 21173440), (15, 16938752), (16, 15880080), (20, 12704064), (24, 10586720), (30, 8469376), (32, 7940040), (40, 6352032), (48, 5293360), (60, 4234688), (64, 3970020), (80, 3176016), (96, 2646680), (120, 2117344), (127, 2000640), (128, 1985010), (160, 1588008), (192, 1323340), (240, 1058672), (254, 1000320), (256, 992505), (320, 794004), (381, 666880), (384, 661670), (480, 529336), (508, 500160), (521, 487680), (635, 400128), (640, 397002), (762, 333440), (768, 330835), (960, 264668), (1016, 250080), (1042, 243840), (1270, 200064), (1280, 198501), (1524, 166720), (1563, 162560), (1905, 133376), (1920, 132334), (2032, 125040), (2084, 121920), (2540, 100032), (2605, 97536), (3048, 83360), (3126, 81280), (3810, 66688), (3840, 66167), (4064, 62520), (4168, 60960), (5080, 50016), (5210, 48768), (6096, 41680), (6252, 40640), (7620, 33344), (7815, 32512), (8128, 31260), (8336, 30480), (10160, 25008), (10420, 24384), (12192, 20840), (12504, 20320), (15240, 16672), (15630, 16256)]