20163399680

素因数分解:

$2^{12}\times 5^1\times {\mathrm{984541}}^1$

素因数の和:984570

約数の個数: 52

約数和(自身を含む): 48386301132

約数和(自身を除く): 28222901452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 4096, 5120, 10240, 20480, 984541, 1969082, 3938164, 4922705, 7876328, 9845410, 15752656, 19690820, 31505312, 39381640, 63010624, 78763280, 126021248, 157526560, 252042496, 315053120, 504084992, 630106240, 1008169984, 1260212480, 2016339968, 2520424960, 4032679936, 5040849920, 10081699840, 20163399680]

約数ペア:

[(1, 20163399680), (2, 10081699840), (4, 5040849920), (5, 4032679936), (8, 2520424960), (10, 2016339968), (16, 1260212480), (20, 1008169984), (32, 630106240), (40, 504084992), (64, 315053120), (80, 252042496), (128, 157526560), (160, 126021248), (256, 78763280), (320, 63010624), (512, 39381640), (640, 31505312), (1024, 19690820), (1280, 15752656), (2048, 9845410), (2560, 7876328), (4096, 4922705), (5120, 3938164), (10240, 1969082), (20480, 984541)]