20122765

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{877}}^1$

素因数の和:1248

約数の個数: 16

約数和(自身を含む): 26108208

約数和(自身を除く): 5985443

約数列:

[1, 5, 13, 65, 353, 877, 1765, 4385, 4589, 11401, 22945, 57005, 309581, 1547905, 4024553, 20122765]

約数ペア:

[(1, 20122765), (5, 4024553), (13, 1547905), (65, 309581), (353, 57005), (877, 22945), (1765, 11401), (4385, 4589)]