201909455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{277}}^1\times {\mathrm{457}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 275019840

約数和(自身を除く): 73110385

約数列:

[1, 5, 11, 29, 55, 145, 277, 319, 457, 1385, 1595, 2285, 3047, 5027, 8033, 13253, 15235, 25135, 40165, 66265, 88363, 126589, 145783, 441815, 632945, 728915, 1392479, 3671081, 6962395, 18355405, 40381891, 201909455]

約数ペア:

[(1, 201909455), (5, 40381891), (11, 18355405), (29, 6962395), (55, 3671081), (145, 1392479), (277, 728915), (319, 632945), (457, 441815), (1385, 145783), (1595, 126589), (2285, 88363), (3047, 66265), (5027, 40165), (8033, 25135), (13253, 15235)]