257389440

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1741}}^1$

素因数の和:1781

約数の個数: 256

約数和(自身を含む): 1023459840

約数和(自身を除く): 766070400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 32, 33, 35, 40, 42, 44, 48, 55, 56, 60, 64, 66, 70, 77, 80, 84, 88, 96, 105, 110, 112, 120, 128, 132, 140, 154, 160, 165, 168, 176, 192, 210, 220, 224, 231, 240, 264, 280, 308, 320, 330, 336, 352, 384, 385, 420, 440, 448, 462, 480, 528, 560, 616, 640, 660, 672, 704, 770, 840, 880, 896, 924, 960, 1056, 1120, 1155, 1232, 1320, 1344, 1408, 1540, 1680, 1741, 1760, 1848, 1920, 2112, 2240, 2310, 2464, 2640, 2688, 3080, 3360, 3482, 3520, 3696, 4224, 4480, 4620, 4928, 5223, 5280, 6160, 6720, 6964, 7040, 7392, 8705, 9240, 9856, 10446, 10560, 12187, 12320, 13440, 13928, 14784, 17410, 18480, 19151, 20892, 21120, 24374, 24640, 26115, 27856, 29568, 34820, 36561, 36960, 38302, 41784, 48748, 49280, 52230, 55712, 57453, 60935, 69640, 73122, 73920, 76604, 83568, 95755, 97496, 104460, 111424, 114906, 121870, 134057, 139280, 146244, 147840, 153208, 167136, 182805, 191510, 194992, 208920, 222848, 229812, 243740, 268114, 278560, 287265, 292488, 306416, 334272, 365610, 383020, 389984, 402171, 417840, 459624, 487480, 536228, 557120, 574530, 584976, 612832, 668544, 670285, 731220, 766040, 779968, 804342, 835680, 919248, 974960, 1072456, 1114240, 1149060, 1169952, 1225664, 1340570, 1462440, 1532080, 1559936, 1608684, 1671360, 1838496, 1949920, 2010855, 2144912, 2298120, 2339904, 2451328, 2681140, 2924880, 3064160, 3217368, 3342720, 3676992, 3899840, 4021710, 4289824, 4596240, 4679808, 5362280, 5849760, 6128320, 6434736, 7353984, 7799680, 8043420, 8579648, 9192480, 10724560, 11699520, 12256640, 12869472, 16086840, 17159296, 18384960, 21449120, 23399040, 25738944, 32173680, 36769920, 42898240, 51477888, 64347360, 85796480, 128694720, 257389440]

約数ペア:

[(1, 257389440), (2, 128694720), (3, 85796480), (4, 64347360), (5, 51477888), (6, 42898240), (7, 36769920), (8, 32173680), (10, 25738944), (11, 23399040), (12, 21449120), (14, 18384960), (15, 17159296), (16, 16086840), (20, 12869472), (21, 12256640), (22, 11699520), (24, 10724560), (28, 9192480), (30, 8579648), (32, 8043420), (33, 7799680), (35, 7353984), (40, 6434736), (42, 6128320), (44, 5849760), (48, 5362280), (55, 4679808), (56, 4596240), (60, 4289824), (64, 4021710), (66, 3899840), (70, 3676992), (77, 3342720), (80, 3217368), (84, 3064160), (88, 2924880), (96, 2681140), (105, 2451328), (110, 2339904), (112, 2298120), (120, 2144912), (128, 2010855), (132, 1949920), (140, 1838496), (154, 1671360), (160, 1608684), (165, 1559936), (168, 1532080), (176, 1462440), (192, 1340570), (210, 1225664), (220, 1169952), (224, 1149060), (231, 1114240), (240, 1072456), (264, 974960), (280, 919248), (308, 835680), (320, 804342), (330, 779968), (336, 766040), (352, 731220), (384, 670285), (385, 668544), (420, 612832), (440, 584976), (448, 574530), (462, 557120), (480, 536228), (528, 487480), (560, 459624), (616, 417840), (640, 402171), (660, 389984), (672, 383020), (704, 365610), (770, 334272), (840, 306416), (880, 292488), (896, 287265), (924, 278560), (960, 268114), (1056, 243740), (1120, 229812), (1155, 222848), (1232, 208920), (1320, 194992), (1344, 191510), (1408, 182805), (1540, 167136), (1680, 153208), (1741, 147840), (1760, 146244), (1848, 139280), (1920, 134057), (2112, 121870), (2240, 114906), (2310, 111424), (2464, 104460), (2640, 97496), (2688, 95755), (3080, 83568), (3360, 76604), (3482, 73920), (3520, 73122), (3696, 69640), (4224, 60935), (4480, 57453), (4620, 55712), (4928, 52230), (5223, 49280), (5280, 48748), (6160, 41784), (6720, 38302), (6964, 36960), (7040, 36561), (7392, 34820), (8705, 29568), (9240, 27856), (9856, 26115), (10446, 24640), (10560, 24374), (12187, 21120), (12320, 20892), (13440, 19151), (13928, 18480), (14784, 17410)]