28025405

素因数分解:

$5^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1\times {\mathrm{251}}^1$

素因数の和:556

約数の個数: 16

約数和(自身を含む): 34219584

約数和(自身を除く): 6194179

約数列:

[1, 5, 137, 163, 251, 685, 815, 1255, 22331, 34387, 40913, 111655, 171935, 204565, 5605081, 28025405]

約数ペア:

[(1, 28025405), (5, 5605081), (137, 204565), (163, 171935), (251, 111655), (685, 40913), (815, 34387), (1255, 22331)]