256937408

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:470

約数の個数: 112

約数和(自身を含む): 633764544

約数和(自身を除く): 376827136

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 157, 182, 208, 224, 281, 314, 364, 416, 448, 562, 628, 728, 832, 1099, 1124, 1256, 1456, 1967, 2041, 2198, 2248, 2512, 2912, 3653, 3934, 4082, 4396, 4496, 5024, 5824, 7306, 7868, 8164, 8792, 8992, 10048, 14287, 14612, 15736, 16328, 17584, 17984, 25571, 28574, 29224, 31472, 32656, 35168, 44117, 51142, 57148, 58448, 62944, 65312, 70336, 88234, 102284, 114296, 116896, 125888, 130624, 176468, 204568, 228592, 233792, 308819, 352936, 409136, 457184, 573521, 617638, 705872, 818272, 914368, 1147042, 1235276, 1411744, 1636544, 2294084, 2470552, 2823488, 4014647, 4588168, 4941104, 8029294, 9176336, 9882208, 16058588, 18352672, 19764416, 32117176, 36705344, 64234352, 128468704, 256937408]

約数ペア:

[(1, 256937408), (2, 128468704), (4, 64234352), (7, 36705344), (8, 32117176), (13, 19764416), (14, 18352672), (16, 16058588), (26, 9882208), (28, 9176336), (32, 8029294), (52, 4941104), (56, 4588168), (64, 4014647), (91, 2823488), (104, 2470552), (112, 2294084), (157, 1636544), (182, 1411744), (208, 1235276), (224, 1147042), (281, 914368), (314, 818272), (364, 705872), (416, 617638), (448, 573521), (562, 457184), (628, 409136), (728, 352936), (832, 308819), (1099, 233792), (1124, 228592), (1256, 204568), (1456, 176468), (1967, 130624), (2041, 125888), (2198, 116896), (2248, 114296), (2512, 102284), (2912, 88234), (3653, 70336), (3934, 65312), (4082, 62944), (4396, 58448), (4496, 57148), (5024, 51142), (5824, 44117), (7306, 35168), (7868, 32656), (8164, 31472), (8792, 29224), (8992, 28574), (10048, 25571), (14287, 17984), (14612, 17584), (15736, 16328)]