1991738625

素因数分解:

$3^1\times 5^3\times {\mathrm{5311303}}^1$

素因数の和:5311321

約数の個数: 16

約数和(自身を含む): 3314253696

約数和(自身を除く): 1322515071

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 5311303, 15933909, 26556515, 79669545, 132782575, 398347725, 663912875, 1991738625]

約数ペア:

[(1, 1991738625), (3, 663912875), (5, 398347725), (15, 132782575), (25, 79669545), (75, 26556515), (125, 15933909), (375, 5311303)]