20804954008

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{271}}^2\times {\mathrm{2083}}^1$

素因数の和:2648

約数の個数: 48

約数和(自身を含む): 41476830840

約数和(自身を除く): 20671876832

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 271, 542, 1084, 2083, 2168, 4166, 4607, 8332, 9214, 16664, 18428, 35411, 36856, 70822, 73441, 141644, 146882, 283288, 293764, 564493, 587528, 1128986, 1248497, 2257972, 2496994, 4515944, 4993988, 9596381, 9987976, 19192762, 38385524, 76771048, 152977603, 305955206, 611910412, 1223820824, 2600619251, 5201238502, 10402477004, 20804954008]

約数ペア:

[(1, 20804954008), (2, 10402477004), (4, 5201238502), (8, 2600619251), (17, 1223820824), (34, 611910412), (68, 305955206), (136, 152977603), (271, 76771048), (542, 38385524), (1084, 19192762), (2083, 9987976), (2168, 9596381), (4166, 4993988), (4607, 4515944), (8332, 2496994), (9214, 2257972), (16664, 1248497), (18428, 1128986), (35411, 587528), (36856, 564493), (70822, 293764), (73441, 283288), (141644, 146882)]