39480940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{433}}^1$

素因数の和:586

約数の個数: 48

約数和(自身を含む): 85744512

約数和(自身を除く): 46263572

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 97, 188, 194, 235, 388, 433, 470, 485, 866, 940, 970, 1732, 1940, 2165, 4330, 4559, 8660, 9118, 18236, 20351, 22795, 40702, 42001, 45590, 81404, 84002, 91180, 101755, 168004, 203510, 210005, 407020, 420010, 840020, 1974047, 3948094, 7896188, 9870235, 19740470, 39480940]

約数ペア:

[(1, 39480940), (2, 19740470), (4, 9870235), (5, 7896188), (10, 3948094), (20, 1974047), (47, 840020), (94, 420010), (97, 407020), (188, 210005), (194, 203510), (235, 168004), (388, 101755), (433, 91180), (470, 84002), (485, 81404), (866, 45590), (940, 42001), (970, 40702), (1732, 22795), (1940, 20351), (2165, 18236), (4330, 9118), (4559, 8660)]