39289220

素因数分解:

$2^2\times 5^1\times {\mathrm{1964461}}^1$

素因数の和:1964470

約数の個数: 12

約数和(自身を含む): 82507404

約数和(自身を除く): 43218184

約数列:

[1, 2, 4, 5, 10, 20, 1964461, 3928922, 7857844, 9822305, 19644610, 39289220]

約数ペア:

[(1, 39289220), (2, 19644610), (4, 9822305), (5, 7857844), (10, 3928922), (20, 1964461)]