1345446400

素因数分解:

$2^9\times 5^2\times {\mathrm{257}}^1\times {\mathrm{409}}^1$

素因数の和:694

約数の個数: 120

約数和(自身を含む): 3354601140

約数和(自身を除く): 2009154740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 257, 320, 400, 409, 512, 514, 640, 800, 818, 1028, 1280, 1285, 1600, 1636, 2045, 2056, 2560, 2570, 3200, 3272, 4090, 4112, 5140, 6400, 6425, 6544, 8180, 8224, 10225, 10280, 12800, 12850, 13088, 16360, 16448, 20450, 20560, 25700, 26176, 32720, 32896, 40900, 41120, 51400, 52352, 65440, 65792, 81800, 82240, 102800, 104704, 105113, 130880, 131584, 163600, 164480, 205600, 209408, 210226, 261760, 327200, 328960, 411200, 420452, 523520, 525565, 654400, 657920, 822400, 840904, 1047040, 1051130, 1308800, 1644800, 1681808, 2102260, 2617600, 2627825, 3289600, 3363616, 4204520, 5235200, 5255650, 6727232, 8409040, 10511300, 13454464, 16818080, 21022600, 26908928, 33636160, 42045200, 53817856, 67272320, 84090400, 134544640, 168180800, 269089280, 336361600, 672723200, 1345446400]

約数ペア:

[(1, 1345446400), (2, 672723200), (4, 336361600), (5, 269089280), (8, 168180800), (10, 134544640), (16, 84090400), (20, 67272320), (25, 53817856), (32, 42045200), (40, 33636160), (50, 26908928), (64, 21022600), (80, 16818080), (100, 13454464), (128, 10511300), (160, 8409040), (200, 6727232), (256, 5255650), (257, 5235200), (320, 4204520), (400, 3363616), (409, 3289600), (512, 2627825), (514, 2617600), (640, 2102260), (800, 1681808), (818, 1644800), (1028, 1308800), (1280, 1051130), (1285, 1047040), (1600, 840904), (1636, 822400), (2045, 657920), (2056, 654400), (2560, 525565), (2570, 523520), (3200, 420452), (3272, 411200), (4090, 328960), (4112, 327200), (5140, 261760), (6400, 210226), (6425, 209408), (6544, 205600), (8180, 164480), (8224, 163600), (10225, 131584), (10280, 130880), (12800, 105113), (12850, 104704), (13088, 102800), (16360, 82240), (16448, 81800), (20450, 65792), (20560, 65440), (25700, 52352), (26176, 51400), (32720, 41120), (32896, 40900)]