1291253185

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1\times {\mathrm{251}}^1$

素因数の和:585

約数の個数: 32

約数和(自身を含む): 1606397184

約数和(自身を除く): 315143999

約数列:

[1, 5, 61, 101, 167, 251, 305, 505, 835, 1255, 6161, 10187, 15311, 16867, 25351, 30805, 41917, 50935, 76555, 84335, 126755, 209585, 1028887, 1546411, 2556937, 4233617, 5144435, 7732055, 12784685, 21168085, 258250637, 1291253185]

約数ペア:

[(1, 1291253185), (5, 258250637), (61, 21168085), (101, 12784685), (167, 7732055), (251, 5144435), (305, 4233617), (505, 2556937), (835, 1546411), (1255, 1028887), (6161, 209585), (10187, 126755), (15311, 84335), (16867, 76555), (25351, 50935), (30805, 41917)]