208021165

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1\times {\mathrm{263}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 278505216

約数和(自身を除く): 70484051

約数列:

[1, 5, 11, 55, 73, 197, 263, 365, 803, 985, 1315, 2167, 2893, 4015, 10835, 14381, 14465, 19199, 51811, 71905, 95995, 158191, 211189, 259055, 569921, 790955, 1055945, 2849605, 3782203, 18911015, 41604233, 208021165]

約数ペア:

[(1, 208021165), (5, 41604233), (11, 18911015), (55, 3782203), (73, 2849605), (197, 1055945), (263, 790955), (365, 569921), (803, 259055), (985, 211189), (1315, 158191), (2167, 95995), (2893, 71905), (4015, 51811), (10835, 19199), (14381, 14465)]