261389376

素因数分解:

$2^6\times 3^3\times {\mathrm{331}}^1\times {\mathrm{457}}^1$

素因数の和:809

約数の個数: 112

約数和(自身を含む): 772444480

約数和(自身を除く): 511055104

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 144, 192, 216, 288, 331, 432, 457, 576, 662, 864, 914, 993, 1324, 1371, 1728, 1828, 1986, 2648, 2742, 2979, 3656, 3972, 4113, 5296, 5484, 5958, 7312, 7944, 8226, 8937, 10592, 10968, 11916, 12339, 14624, 15888, 16452, 17874, 21184, 21936, 23832, 24678, 29248, 31776, 32904, 35748, 43872, 47664, 49356, 63552, 65808, 71496, 87744, 95328, 98712, 131616, 142992, 151267, 190656, 197424, 263232, 285984, 302534, 394848, 453801, 571968, 605068, 789696, 907602, 1210136, 1361403, 1815204, 2420272, 2722806, 3630408, 4084209, 4840544, 5445612, 7260816, 8168418, 9681088, 10891224, 14521632, 16336836, 21782448, 29043264, 32673672, 43564896, 65347344, 87129792, 130694688, 261389376]

約数ペア:

[(1, 261389376), (2, 130694688), (3, 87129792), (4, 65347344), (6, 43564896), (8, 32673672), (9, 29043264), (12, 21782448), (16, 16336836), (18, 14521632), (24, 10891224), (27, 9681088), (32, 8168418), (36, 7260816), (48, 5445612), (54, 4840544), (64, 4084209), (72, 3630408), (96, 2722806), (108, 2420272), (144, 1815204), (192, 1361403), (216, 1210136), (288, 907602), (331, 789696), (432, 605068), (457, 571968), (576, 453801), (662, 394848), (864, 302534), (914, 285984), (993, 263232), (1324, 197424), (1371, 190656), (1728, 151267), (1828, 142992), (1986, 131616), (2648, 98712), (2742, 95328), (2979, 87744), (3656, 71496), (3972, 65808), (4113, 63552), (5296, 49356), (5484, 47664), (5958, 43872), (7312, 35748), (7944, 32904), (8226, 31776), (8937, 29248), (10592, 24678), (10968, 23832), (11916, 21936), (12339, 21184), (14624, 17874), (15888, 16452)]