81218715

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{68539}}^1$

素因数の和:68626

約数の個数: 16

約数和(自身を含む): 131596800

約数和(自身を除く): 50378085

約数列:

[1, 3, 5, 15, 79, 237, 395, 1185, 68539, 205617, 342695, 1028085, 5414581, 16243743, 27072905, 81218715]

約数ペア:

[(1, 81218715), (3, 27072905), (5, 16243743), (15, 5414581), (79, 1028085), (237, 342695), (395, 205617), (1185, 68539)]