138520450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1049}}^1$

素因数の和:1219

約数の個数: 48

約数和(自身を含む): 273420000

約数和(自身を除く): 134899550

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 139, 190, 278, 475, 695, 950, 1049, 1390, 2098, 2641, 3475, 5245, 5282, 6950, 10490, 13205, 19931, 26225, 26410, 39862, 52450, 66025, 99655, 132050, 145811, 199310, 291622, 498275, 729055, 996550, 1458110, 2770409, 3645275, 5540818, 7290550, 13852045, 27704090, 69260225, 138520450]

約数ペア:

[(1, 138520450), (2, 69260225), (5, 27704090), (10, 13852045), (19, 7290550), (25, 5540818), (38, 3645275), (50, 2770409), (95, 1458110), (139, 996550), (190, 729055), (278, 498275), (475, 291622), (695, 199310), (950, 145811), (1049, 132050), (1390, 99655), (2098, 66025), (2641, 52450), (3475, 39862), (5245, 26410), (5282, 26225), (6950, 19931), (10490, 13205)]