20628950

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13309}}^1$

素因数の和:13352

約数の個数: 24

約数和(自身を含む): 39610560

約数和(自身を除く): 18981610

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 13309, 26618, 66545, 133090, 332725, 412579, 665450, 825158, 2062895, 4125790, 10314475, 20628950]

約数ペア:

[(1, 20628950), (2, 10314475), (5, 4125790), (10, 2062895), (25, 825158), (31, 665450), (50, 412579), (62, 332725), (155, 133090), (310, 66545), (775, 26618), (1550, 13309)]