1019729090

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{991}}^1\times {\mathrm{2393}}^1$

素因数の和:3434

約数の個数: 32

約数和(自身を含む): 1880879616

約数和(自身を除く): 861150526

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 991, 1982, 2393, 4786, 4955, 9910, 11965, 23930, 42613, 85226, 102899, 205798, 213065, 426130, 514495, 1028990, 2371463, 4742926, 11857315, 23714630, 101972909, 203945818, 509864545, 1019729090]

約数ペア:

[(1, 1019729090), (2, 509864545), (5, 203945818), (10, 101972909), (43, 23714630), (86, 11857315), (215, 4742926), (430, 2371463), (991, 1028990), (1982, 514495), (2393, 426130), (4786, 213065), (4955, 205798), (9910, 102899), (11965, 85226), (23930, 42613)]