81541115

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{1511}}^1$

素因数の和:1810

約数の個数: 16

約数和(自身を含む): 100590336

約数和(自身を除く): 19049221

約数列:

[1, 5, 43, 215, 251, 1255, 1511, 7555, 10793, 53965, 64973, 324865, 379261, 1896305, 16308223, 81541115]

約数ペア:

[(1, 81541115), (5, 16308223), (43, 1896305), (215, 379261), (251, 324865), (1255, 64973), (1511, 53965), (7555, 10793)]