81531145

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{1607}}^1$

素因数の和:1824

約数の個数: 16

約数和(自身を含む): 99953280

約数和(自身を除く): 18422135

約数列:

[1, 5, 73, 139, 365, 695, 1607, 8035, 10147, 50735, 117311, 223373, 586555, 1116865, 16306229, 81531145]

約数ペア:

[(1, 81531145), (5, 16306229), (73, 1116865), (139, 586555), (365, 223373), (695, 117311), (1607, 50735), (8035, 10147)]