54740405

素因数分解:

$5^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:808

約数の個数: 16

約数和(自身を含む): 66720240

約数和(自身を除く): 11979835

約数列:

[1, 5, 137, 157, 509, 685, 785, 2545, 21509, 69733, 79913, 107545, 348665, 399565, 10948081, 54740405]

約数ペア:

[(1, 54740405), (5, 10948081), (137, 399565), (157, 348665), (509, 107545), (685, 79913), (785, 69733), (2545, 21509)]