78000375

素因数分解:

$3^1\times 5^3\times {\mathrm{208001}}^1$

素因数の和:208019

約数の個数: 16

約数和(自身を含む): 129793248

約数和(自身を除く): 51792873

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 208001, 624003, 1040005, 3120015, 5200025, 15600075, 26000125, 78000375]

約数ペア:

[(1, 78000375), (3, 26000125), (5, 15600075), (15, 5200025), (25, 3120015), (75, 1040005), (125, 624003), (375, 208001)]