28381415

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{881}}^1$

素因数の和:1282

約数の個数: 16

約数和(自身を含む): 36197280

約数和(自身を除く): 7815865

約数列:

[1, 5, 17, 85, 379, 881, 1895, 4405, 6443, 14977, 32215, 74885, 333899, 1669495, 5676283, 28381415]

約数ペア:

[(1, 28381415), (5, 5676283), (17, 1669495), (85, 333899), (379, 74885), (881, 32215), (1895, 14977), (4405, 6443)]