28527920

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8293}}^1$

素因数の和:8349

約数の個数: 40

約数和(自身を含む): 67878096

約数和(自身を除く): 39350176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8293, 16586, 33172, 41465, 66344, 82930, 132688, 165860, 331720, 356599, 663440, 713198, 1426396, 1782995, 2852792, 3565990, 5705584, 7131980, 14263960, 28527920]

約数ペア:

[(1, 28527920), (2, 14263960), (4, 7131980), (5, 5705584), (8, 3565990), (10, 2852792), (16, 1782995), (20, 1426396), (40, 713198), (43, 663440), (80, 356599), (86, 331720), (172, 165860), (215, 132688), (344, 82930), (430, 66344), (688, 41465), (860, 33172), (1720, 16586), (3440, 8293)]