257982720

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{127}}^1$

素因数の和:197

約数の個数: 216

約数和(自身を含む): 868094976

約数和(自身を除く): 610112256

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 80, 92, 96, 115, 120, 127, 128, 138, 160, 184, 192, 230, 240, 254, 256, 276, 320, 345, 368, 381, 384, 460, 480, 508, 529, 552, 635, 640, 690, 736, 762, 768, 920, 960, 1016, 1058, 1104, 1270, 1280, 1380, 1472, 1524, 1587, 1840, 1905, 1920, 2032, 2116, 2208, 2540, 2645, 2760, 2921, 2944, 3048, 3174, 3680, 3810, 3840, 4064, 4232, 4416, 5080, 5290, 5520, 5842, 5888, 6096, 6348, 7360, 7620, 7935, 8128, 8464, 8763, 8832, 10160, 10580, 11040, 11684, 12192, 12696, 14605, 14720, 15240, 15870, 16256, 16928, 17526, 17664, 20320, 21160, 22080, 23368, 24384, 25392, 29210, 29440, 30480, 31740, 32512, 33856, 35052, 40640, 42320, 43815, 44160, 46736, 48768, 50784, 58420, 60960, 63480, 67183, 67712, 70104, 81280, 84640, 87630, 88320, 93472, 97536, 101568, 116840, 121920, 126960, 134366, 135424, 140208, 162560, 169280, 175260, 186944, 201549, 203136, 233680, 243840, 253920, 268732, 280416, 335915, 338560, 350520, 373888, 403098, 406272, 467360, 487680, 507840, 537464, 560832, 671830, 677120, 701040, 747776, 806196, 934720, 1007745, 1015680, 1074928, 1121664, 1343660, 1402080, 1612392, 1869440, 2015490, 2031360, 2149856, 2243328, 2687320, 2804160, 3224784, 3738880, 4030980, 4299712, 5374640, 5608320, 6449568, 8061960, 8599424, 10749280, 11216640, 12899136, 16123920, 17198848, 21498560, 25798272, 32247840, 42997120, 51596544, 64495680, 85994240, 128991360, 257982720]

約数ペア:

[(1, 257982720), (2, 128991360), (3, 85994240), (4, 64495680), (5, 51596544), (6, 42997120), (8, 32247840), (10, 25798272), (12, 21498560), (15, 17198848), (16, 16123920), (20, 12899136), (23, 11216640), (24, 10749280), (30, 8599424), (32, 8061960), (40, 6449568), (46, 5608320), (48, 5374640), (60, 4299712), (64, 4030980), (69, 3738880), (80, 3224784), (92, 2804160), (96, 2687320), (115, 2243328), (120, 2149856), (127, 2031360), (128, 2015490), (138, 1869440), (160, 1612392), (184, 1402080), (192, 1343660), (230, 1121664), (240, 1074928), (254, 1015680), (256, 1007745), (276, 934720), (320, 806196), (345, 747776), (368, 701040), (381, 677120), (384, 671830), (460, 560832), (480, 537464), (508, 507840), (529, 487680), (552, 467360), (635, 406272), (640, 403098), (690, 373888), (736, 350520), (762, 338560), (768, 335915), (920, 280416), (960, 268732), (1016, 253920), (1058, 243840), (1104, 233680), (1270, 203136), (1280, 201549), (1380, 186944), (1472, 175260), (1524, 169280), (1587, 162560), (1840, 140208), (1905, 135424), (1920, 134366), (2032, 126960), (2116, 121920), (2208, 116840), (2540, 101568), (2645, 97536), (2760, 93472), (2921, 88320), (2944, 87630), (3048, 84640), (3174, 81280), (3680, 70104), (3810, 67712), (3840, 67183), (4064, 63480), (4232, 60960), (4416, 58420), (5080, 50784), (5290, 48768), (5520, 46736), (5842, 44160), (5888, 43815), (6096, 42320), (6348, 40640), (7360, 35052), (7620, 33856), (7935, 32512), (8128, 31740), (8464, 30480), (8763, 29440), (8832, 29210), (10160, 25392), (10580, 24384), (11040, 23368), (11684, 22080), (12192, 21160), (12696, 20320), (14605, 17664), (14720, 17526), (15240, 16928), (15870, 16256)]