81317965

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{4457}}^1$

素因数の和:4592

約数の個数: 16

約数和(自身を含む): 101107440

約数和(自身を除く): 19789475

約数列:

[1, 5, 41, 89, 205, 445, 3649, 4457, 18245, 22285, 182737, 396673, 913685, 1983365, 16263593, 81317965]

約数ペア:

[(1, 81317965), (5, 16263593), (41, 1983365), (89, 913685), (205, 396673), (445, 182737), (3649, 22285), (4457, 18245)]