21544960

素因数分解:

$2^{14}\times 5^1\times {\mathrm{263}}^1$

素因数の和:296

約数の個数: 60

約数和(自身を含む): 51902928

約数和(自身を除く): 30357968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 263, 320, 512, 526, 640, 1024, 1052, 1280, 1315, 2048, 2104, 2560, 2630, 4096, 4208, 5120, 5260, 8192, 8416, 10240, 10520, 16384, 16832, 20480, 21040, 33664, 40960, 42080, 67328, 81920, 84160, 134656, 168320, 269312, 336640, 538624, 673280, 1077248, 1346560, 2154496, 2693120, 4308992, 5386240, 10772480, 21544960]

約数ペア:

[(1, 21544960), (2, 10772480), (4, 5386240), (5, 4308992), (8, 2693120), (10, 2154496), (16, 1346560), (20, 1077248), (32, 673280), (40, 538624), (64, 336640), (80, 269312), (128, 168320), (160, 134656), (256, 84160), (263, 81920), (320, 67328), (512, 42080), (526, 40960), (640, 33664), (1024, 21040), (1052, 20480), (1280, 16832), (1315, 16384), (2048, 10520), (2104, 10240), (2560, 8416), (2630, 8192), (4096, 5260), (4208, 5120)]