78762980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{10909}}^1$

素因数の和:10956

約数の個数: 36

約数和(自身を含む): 174581820

約数和(自身を除く): 95818840

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 10909, 21818, 43636, 54545, 109090, 207271, 218180, 414542, 829084, 1036355, 2072710, 3938149, 4145420, 7876298, 15752596, 19690745, 39381490, 78762980]

約数ペア:

[(1, 78762980), (2, 39381490), (4, 19690745), (5, 15752596), (10, 7876298), (19, 4145420), (20, 3938149), (38, 2072710), (76, 1036355), (95, 829084), (190, 414542), (361, 218180), (380, 207271), (722, 109090), (1444, 54545), (1805, 43636), (3610, 21818), (7220, 10909)]