25981965

素因数分解:

$3^4\times 5^1\times {\mathrm{64153}}^1$

素因数の和:64170

約数の個数: 20

約数和(自身を含む): 46575804

約数和(自身を除く): 20593839

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 64153, 192459, 320765, 577377, 962295, 1732131, 2886885, 5196393, 8660655, 25981965]

約数ペア:

[(1, 25981965), (3, 8660655), (5, 5196393), (9, 2886885), (15, 1732131), (27, 962295), (45, 577377), (81, 320765), (135, 192459), (405, 64153)]