81320722

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{305717}}^1$

素因数の和:305745

約数の個数: 16

約数和(自身を含む): 146744640

約数和(自身を除く): 65423918

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 305717, 611434, 2140019, 4280038, 5808623, 11617246, 40660361, 81320722]

約数ペア:

[(1, 81320722), (2, 40660361), (7, 11617246), (14, 5808623), (19, 4280038), (38, 2140019), (133, 611434), (266, 305717)]