261484704

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{331}}^1$

素因数の和:571

約数の個数: 144

約数和(自身を含む): 807022944

約数和(自身を除く): 545538240

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 211, 234, 288, 312, 331, 416, 422, 468, 624, 633, 662, 844, 936, 993, 1248, 1266, 1324, 1688, 1872, 1899, 1986, 2532, 2648, 2743, 2979, 3376, 3744, 3798, 3972, 4303, 5064, 5296, 5486, 5958, 6752, 7596, 7944, 8229, 8606, 10128, 10592, 10972, 11916, 12909, 15192, 15888, 16458, 17212, 20256, 21944, 23832, 24687, 25818, 30384, 31776, 32916, 34424, 38727, 43888, 47664, 49374, 51636, 60768, 65832, 68848, 69841, 77454, 87776, 95328, 98748, 103272, 131664, 137696, 139682, 154908, 197496, 206544, 209523, 263328, 279364, 309816, 394992, 413088, 419046, 558728, 619632, 628569, 789984, 838092, 907933, 1117456, 1239264, 1257138, 1676184, 1815866, 2234912, 2514276, 2723799, 3352368, 3631732, 5028552, 5447598, 6704736, 7263464, 8171397, 10057104, 10895196, 14526928, 16342794, 20114208, 21790392, 29053856, 32685588, 43580784, 65371176, 87161568, 130742352, 261484704]

約数ペア:

[(1, 261484704), (2, 130742352), (3, 87161568), (4, 65371176), (6, 43580784), (8, 32685588), (9, 29053856), (12, 21790392), (13, 20114208), (16, 16342794), (18, 14526928), (24, 10895196), (26, 10057104), (32, 8171397), (36, 7263464), (39, 6704736), (48, 5447598), (52, 5028552), (72, 3631732), (78, 3352368), (96, 2723799), (104, 2514276), (117, 2234912), (144, 1815866), (156, 1676184), (208, 1257138), (211, 1239264), (234, 1117456), (288, 907933), (312, 838092), (331, 789984), (416, 628569), (422, 619632), (468, 558728), (624, 419046), (633, 413088), (662, 394992), (844, 309816), (936, 279364), (993, 263328), (1248, 209523), (1266, 206544), (1324, 197496), (1688, 154908), (1872, 139682), (1899, 137696), (1986, 131664), (2532, 103272), (2648, 98748), (2743, 95328), (2979, 87776), (3376, 77454), (3744, 69841), (3798, 68848), (3972, 65832), (4303, 60768), (5064, 51636), (5296, 49374), (5486, 47664), (5958, 43888), (6752, 38727), (7596, 34424), (7944, 32916), (8229, 31776), (8606, 30384), (10128, 25818), (10592, 24687), (10972, 23832), (11916, 21944), (12909, 20256), (15192, 17212), (15888, 16458)]