78625420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{206909}}^1$

素因数の和:206937

約数の個数: 24

約数和(自身を含む): 173804400

約数和(自身を除く): 95178980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 206909, 413818, 827636, 1034545, 2069090, 3931271, 4138180, 7862542, 15725084, 19656355, 39312710, 78625420]

約数ペア:

[(1, 78625420), (2, 39312710), (4, 19656355), (5, 15725084), (10, 7862542), (19, 4138180), (20, 3931271), (38, 2069090), (76, 1034545), (95, 827636), (190, 413818), (380, 206909)]