66128900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{127}}^2$

素因数の和:309

約数の個数: 54

約数和(自身を含む): 148166298

約数和(自身を除く): 82037398

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 127, 164, 205, 254, 410, 508, 635, 820, 1025, 1270, 2050, 2540, 3175, 4100, 5207, 6350, 10414, 12700, 16129, 20828, 26035, 32258, 52070, 64516, 80645, 104140, 130175, 161290, 260350, 322580, 403225, 520700, 661289, 806450, 1322578, 1612900, 2645156, 3306445, 6612890, 13225780, 16532225, 33064450, 66128900]

約数ペア:

[(1, 66128900), (2, 33064450), (4, 16532225), (5, 13225780), (10, 6612890), (20, 3306445), (25, 2645156), (41, 1612900), (50, 1322578), (82, 806450), (100, 661289), (127, 520700), (164, 403225), (205, 322580), (254, 260350), (410, 161290), (508, 130175), (635, 104140), (820, 80645), (1025, 64516), (1270, 52070), (2050, 32258), (2540, 26035), (3175, 20828), (4100, 16129), (5207, 12700), (6350, 10414)]