40003975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 58924800

約数和(自身を除く): 18920825

約数列:

[1, 5, 11, 17, 25, 43, 55, 85, 187, 199, 215, 275, 425, 473, 731, 935, 995, 1075, 2189, 2365, 3383, 3655, 4675, 4975, 8041, 8557, 10945, 11825, 16915, 18275, 37213, 40205, 42785, 54725, 84575, 94127, 145469, 186065, 201025, 213925, 470635, 727345, 930325, 1600159, 2353175, 3636725, 8000795, 40003975]

約数ペア:

[(1, 40003975), (5, 8000795), (11, 3636725), (17, 2353175), (25, 1600159), (43, 930325), (55, 727345), (85, 470635), (187, 213925), (199, 201025), (215, 186065), (275, 145469), (425, 94127), (473, 84575), (731, 54725), (935, 42785), (995, 40205), (1075, 37213), (2189, 18275), (2365, 16915), (3383, 11825), (3655, 10945), (4675, 8557), (4975, 8041)]