81285295

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{787}}^1$

素因数の和:1039

約数の個数: 32

約数和(自身を含む): 120734208

約数和(自身を除く): 39448913

約数列:

[1, 5, 7, 13, 35, 65, 91, 227, 455, 787, 1135, 1589, 2951, 3935, 5509, 7945, 10231, 14755, 20657, 27545, 51155, 71617, 103285, 178649, 358085, 893245, 1250543, 2322437, 6252715, 11612185, 16257059, 81285295]

約数ペア:

[(1, 81285295), (5, 16257059), (7, 11612185), (13, 6252715), (35, 2322437), (65, 1250543), (91, 893245), (227, 358085), (455, 178649), (787, 103285), (1135, 71617), (1589, 51155), (2951, 27545), (3935, 20657), (5509, 14755), (7945, 10231)]