257873280

素因数分解:

$2^7\times 3^1\times 5^1\times 7^2\times {\mathrm{2741}}^1$

素因数の和:2777

約数の個数: 192

約数和(自身を含む): 956519280

約数和(自身を除く): 698646000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 128, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 280, 294, 320, 336, 384, 392, 420, 448, 480, 490, 560, 588, 640, 672, 735, 784, 840, 896, 960, 980, 1120, 1176, 1344, 1470, 1568, 1680, 1920, 1960, 2240, 2352, 2688, 2741, 2940, 3136, 3360, 3920, 4480, 4704, 5482, 5880, 6272, 6720, 7840, 8223, 9408, 10964, 11760, 13440, 13705, 15680, 16446, 18816, 19187, 21928, 23520, 27410, 31360, 32892, 38374, 41115, 43856, 47040, 54820, 57561, 65784, 76748, 82230, 87712, 94080, 95935, 109640, 115122, 131568, 134309, 153496, 164460, 175424, 191870, 219280, 230244, 263136, 268618, 287805, 306992, 328920, 350848, 383740, 402927, 438560, 460488, 526272, 537236, 575610, 613984, 657840, 671545, 767480, 805854, 877120, 920976, 1052544, 1074472, 1151220, 1227968, 1315680, 1343090, 1534960, 1611708, 1754240, 1841952, 2014635, 2148944, 2302440, 2455936, 2631360, 2686180, 3069920, 3223416, 3683904, 4029270, 4297888, 4604880, 5262720, 5372360, 6139840, 6446832, 7367808, 8058540, 8595776, 9209760, 10744720, 12279680, 12893664, 16117080, 17191552, 18419520, 21489440, 25787328, 32234160, 36839040, 42978880, 51574656, 64468320, 85957760, 128936640, 257873280]

約数ペア:

[(1, 257873280), (2, 128936640), (3, 85957760), (4, 64468320), (5, 51574656), (6, 42978880), (7, 36839040), (8, 32234160), (10, 25787328), (12, 21489440), (14, 18419520), (15, 17191552), (16, 16117080), (20, 12893664), (21, 12279680), (24, 10744720), (28, 9209760), (30, 8595776), (32, 8058540), (35, 7367808), (40, 6446832), (42, 6139840), (48, 5372360), (49, 5262720), (56, 4604880), (60, 4297888), (64, 4029270), (70, 3683904), (80, 3223416), (84, 3069920), (96, 2686180), (98, 2631360), (105, 2455936), (112, 2302440), (120, 2148944), (128, 2014635), (140, 1841952), (147, 1754240), (160, 1611708), (168, 1534960), (192, 1343090), (196, 1315680), (210, 1227968), (224, 1151220), (240, 1074472), (245, 1052544), (280, 920976), (294, 877120), (320, 805854), (336, 767480), (384, 671545), (392, 657840), (420, 613984), (448, 575610), (480, 537236), (490, 526272), (560, 460488), (588, 438560), (640, 402927), (672, 383740), (735, 350848), (784, 328920), (840, 306992), (896, 287805), (960, 268618), (980, 263136), (1120, 230244), (1176, 219280), (1344, 191870), (1470, 175424), (1568, 164460), (1680, 153496), (1920, 134309), (1960, 131568), (2240, 115122), (2352, 109640), (2688, 95935), (2741, 94080), (2940, 87712), (3136, 82230), (3360, 76748), (3920, 65784), (4480, 57561), (4704, 54820), (5482, 47040), (5880, 43856), (6272, 41115), (6720, 38374), (7840, 32892), (8223, 31360), (9408, 27410), (10964, 23520), (11760, 21928), (13440, 19187), (13705, 18816), (15680, 16446)]