478715185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{28657}}^1$

素因数の和:28932

約数の個数: 16

約数和(自身を含む): 621076176

約数和(自身を除く): 142360991

約数列:

[1, 5, 13, 65, 257, 1285, 3341, 16705, 28657, 143285, 372541, 1862705, 7364849, 36824245, 95743037, 478715185]

約数ペア:

[(1, 478715185), (5, 95743037), (13, 36824245), (65, 7364849), (257, 1862705), (1285, 372541), (3341, 143285), (16705, 28657)]