28680375

素因数分解:

$3^1\times 5^3\times {\mathrm{76481}}^1$

素因数の和:76499

約数の個数: 16

約数和(自身を含む): 47724768

約数和(自身を除く): 19044393

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 76481, 229443, 382405, 1147215, 1912025, 5736075, 9560125, 28680375]

約数ペア:

[(1, 28680375), (3, 9560125), (5, 5736075), (15, 1912025), (25, 1147215), (75, 382405), (125, 229443), (375, 76481)]