256495680

素因数分解:

$2^6\times 3^3\times 5^1\times 7^1\times {\mathrm{4241}}^1$

素因数の和:4274

約数の個数: 224

約数和(自身を含む): 1034369280

約数和(自身を除く): 777873600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 270, 280, 288, 315, 320, 336, 360, 378, 420, 432, 448, 480, 504, 540, 560, 576, 630, 672, 720, 756, 840, 864, 945, 960, 1008, 1080, 1120, 1260, 1344, 1440, 1512, 1680, 1728, 1890, 2016, 2160, 2240, 2520, 2880, 3024, 3360, 3780, 4032, 4241, 4320, 5040, 6048, 6720, 7560, 8482, 8640, 10080, 12096, 12723, 15120, 16964, 20160, 21205, 25446, 29687, 30240, 33928, 38169, 42410, 50892, 59374, 60480, 63615, 67856, 76338, 84820, 89061, 101784, 114507, 118748, 127230, 135712, 148435, 152676, 169640, 178122, 190845, 203568, 229014, 237496, 254460, 267183, 271424, 296870, 305352, 339280, 356244, 381690, 407136, 445305, 458028, 474992, 508920, 534366, 572535, 593740, 610704, 678560, 712488, 763380, 801549, 814272, 890610, 916056, 949984, 1017840, 1068732, 1145070, 1187480, 1221408, 1335915, 1357120, 1424976, 1526760, 1603098, 1781220, 1832112, 1899968, 2035680, 2137464, 2290140, 2374960, 2442816, 2671830, 2849952, 3053520, 3206196, 3562440, 3664224, 4007745, 4071360, 4274928, 4580280, 4749920, 5343660, 5699904, 6107040, 6412392, 7124880, 7328448, 8015490, 8549856, 9160560, 9499840, 10687320, 12214080, 12824784, 14249760, 16030980, 17099712, 18321120, 21374640, 25649568, 28499520, 32061960, 36642240, 42749280, 51299136, 64123920, 85498560, 128247840, 256495680]

約数ペア:

[(1, 256495680), (2, 128247840), (3, 85498560), (4, 64123920), (5, 51299136), (6, 42749280), (7, 36642240), (8, 32061960), (9, 28499520), (10, 25649568), (12, 21374640), (14, 18321120), (15, 17099712), (16, 16030980), (18, 14249760), (20, 12824784), (21, 12214080), (24, 10687320), (27, 9499840), (28, 9160560), (30, 8549856), (32, 8015490), (35, 7328448), (36, 7124880), (40, 6412392), (42, 6107040), (45, 5699904), (48, 5343660), (54, 4749920), (56, 4580280), (60, 4274928), (63, 4071360), (64, 4007745), (70, 3664224), (72, 3562440), (80, 3206196), (84, 3053520), (90, 2849952), (96, 2671830), (105, 2442816), (108, 2374960), (112, 2290140), (120, 2137464), (126, 2035680), (135, 1899968), (140, 1832112), (144, 1781220), (160, 1603098), (168, 1526760), (180, 1424976), (189, 1357120), (192, 1335915), (210, 1221408), (216, 1187480), (224, 1145070), (240, 1068732), (252, 1017840), (270, 949984), (280, 916056), (288, 890610), (315, 814272), (320, 801549), (336, 763380), (360, 712488), (378, 678560), (420, 610704), (432, 593740), (448, 572535), (480, 534366), (504, 508920), (540, 474992), (560, 458028), (576, 445305), (630, 407136), (672, 381690), (720, 356244), (756, 339280), (840, 305352), (864, 296870), (945, 271424), (960, 267183), (1008, 254460), (1080, 237496), (1120, 229014), (1260, 203568), (1344, 190845), (1440, 178122), (1512, 169640), (1680, 152676), (1728, 148435), (1890, 135712), (2016, 127230), (2160, 118748), (2240, 114507), (2520, 101784), (2880, 89061), (3024, 84820), (3360, 76338), (3780, 67856), (4032, 63615), (4241, 60480), (4320, 59374), (5040, 50892), (6048, 42410), (6720, 38169), (7560, 33928), (8482, 30240), (8640, 29687), (10080, 25446), (12096, 21205), (12723, 20160), (15120, 16964)]