28678895

素因数分解:

$5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{5981}}^1$

素因数の和:6130

約数の個数: 16

約数和(自身を含む): 39624768

約数和(自身を除く): 10945873

約数列:

[1, 5, 7, 35, 137, 685, 959, 4795, 5981, 29905, 41867, 209335, 819397, 4096985, 5735779, 28678895]

約数ペア:

[(1, 28678895), (5, 5735779), (7, 4096985), (35, 819397), (137, 209335), (685, 41867), (959, 29905), (4795, 5981)]