80937868

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{3889}}^1$

素因数の和:3958

約数の個数: 36

約数和(自身を含む): 159349960

約数和(自身を除く): 78412092

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 121, 172, 242, 473, 484, 946, 1892, 3889, 5203, 7778, 10406, 15556, 20812, 42779, 85558, 167227, 171116, 334454, 470569, 668908, 941138, 1839497, 1882276, 3678994, 7357988, 20234467, 40468934, 80937868]

約数ペア:

[(1, 80937868), (2, 40468934), (4, 20234467), (11, 7357988), (22, 3678994), (43, 1882276), (44, 1839497), (86, 941138), (121, 668908), (172, 470569), (242, 334454), (473, 171116), (484, 167227), (946, 85558), (1892, 42779), (3889, 20812), (5203, 15556), (7778, 10406)]