20164874560

素因数分解:

$2^6\times 5^1\times {\mathrm{139}}^1\times {\mathrm{453347}}^1$

素因数の和:453503

約数の個数: 56

約数和(自身を含む): 48363164640

約数和(自身を除く): 28198290080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 139, 160, 278, 320, 556, 695, 1112, 1390, 2224, 2780, 4448, 5560, 8896, 11120, 22240, 44480, 453347, 906694, 1813388, 2266735, 3626776, 4533470, 7253552, 9066940, 14507104, 18133880, 29014208, 36267760, 63015233, 72535520, 126030466, 145071040, 252060932, 315076165, 504121864, 630152330, 1008243728, 1260304660, 2016487456, 2520609320, 4032974912, 5041218640, 10082437280, 20164874560]

約数ペア:

[(1, 20164874560), (2, 10082437280), (4, 5041218640), (5, 4032974912), (8, 2520609320), (10, 2016487456), (16, 1260304660), (20, 1008243728), (32, 630152330), (40, 504121864), (64, 315076165), (80, 252060932), (139, 145071040), (160, 126030466), (278, 72535520), (320, 63015233), (556, 36267760), (695, 29014208), (1112, 18133880), (1390, 14507104), (2224, 9066940), (2780, 7253552), (4448, 4533470), (5560, 3626776), (8896, 2266735), (11120, 1813388), (22240, 906694), (44480, 453347)]