81192385

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{3739}}^1$

素因数の和:3888

約数の個数: 16

約数和(自身を含む): 100710720

約数和(自身を除く): 19518335

約数列:

[1, 5, 43, 101, 215, 505, 3739, 4343, 18695, 21715, 160777, 377639, 803885, 1888195, 16238477, 81192385]

約数ペア:

[(1, 81192385), (5, 16238477), (43, 1888195), (101, 803885), (215, 377639), (505, 160777), (3739, 21715), (4343, 18695)]