20359984

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{293}}^1$

素因数の和:445

約数の個数: 40

約数和(自身を含む): 40903632

約数和(自身を除く): 20543648

約数列:

[1, 2, 4, 8, 16, 43, 86, 101, 172, 202, 293, 344, 404, 586, 688, 808, 1172, 1616, 2344, 4343, 4688, 8686, 12599, 17372, 25198, 29593, 34744, 50396, 59186, 69488, 100792, 118372, 201584, 236744, 473488, 1272499, 2544998, 5089996, 10179992, 20359984]

約数ペア:

[(1, 20359984), (2, 10179992), (4, 5089996), (8, 2544998), (16, 1272499), (43, 473488), (86, 236744), (101, 201584), (172, 118372), (202, 100792), (293, 69488), (344, 59186), (404, 50396), (586, 34744), (688, 29593), (808, 25198), (1172, 17372), (1616, 12599), (2344, 8686), (4343, 4688)]