2631680

素因数分解:

$2^{11}\times 5^1\times {\mathrm{257}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 6339060

約数和(自身を除く): 3707380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 257, 320, 512, 514, 640, 1024, 1028, 1280, 1285, 2048, 2056, 2560, 2570, 4112, 5120, 5140, 8224, 10240, 10280, 16448, 20560, 32896, 41120, 65792, 82240, 131584, 164480, 263168, 328960, 526336, 657920, 1315840, 2631680]

約数ペア:

[(1, 2631680), (2, 1315840), (4, 657920), (5, 526336), (8, 328960), (10, 263168), (16, 164480), (20, 131584), (32, 82240), (40, 65792), (64, 41120), (80, 32896), (128, 20560), (160, 16448), (256, 10280), (257, 10240), (320, 8224), (512, 5140), (514, 5120), (640, 4112), (1024, 2570), (1028, 2560), (1280, 2056), (1285, 2048)]