81487160

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{3851}}^1$

素因数の和:3908

約数の個数: 48

約数和(自身を含む): 191714040

約数和(自身を除く): 110226880

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 529, 920, 1058, 2116, 2645, 3851, 4232, 5290, 7702, 10580, 15404, 19255, 21160, 30808, 38510, 77020, 88573, 154040, 177146, 354292, 442865, 708584, 885730, 1771460, 2037179, 3542920, 4074358, 8148716, 10185895, 16297432, 20371790, 40743580, 81487160]

約数ペア:

[(1, 81487160), (2, 40743580), (4, 20371790), (5, 16297432), (8, 10185895), (10, 8148716), (20, 4074358), (23, 3542920), (40, 2037179), (46, 1771460), (92, 885730), (115, 708584), (184, 442865), (230, 354292), (460, 177146), (529, 154040), (920, 88573), (1058, 77020), (2116, 38510), (2645, 30808), (3851, 21160), (4232, 19255), (5290, 15404), (7702, 10580)]