20727100

素因数分解:

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

素因数の和:10942

約数の個数: 36

約数和(自身を含む): 47349400

約数和(自身を除く): 26622300

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 10909, 21818, 43636, 54545, 109090, 207271, 218180, 272725, 414542, 545450, 829084, 1036355, 1090900, 2072710, 4145420, 5181775, 10363550, 20727100]

約数ペア:

[(1, 20727100), (2, 10363550), (4, 5181775), (5, 4145420), (10, 2072710), (19, 1090900), (20, 1036355), (25, 829084), (38, 545450), (50, 414542), (76, 272725), (95, 218180), (100, 207271), (190, 109090), (380, 54545), (475, 43636), (950, 21818), (1900, 10909)]