77781136

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{255859}}^1$

素因数の和:255886

約数の個数: 20

約数和(自身を含む): 158633200

約数和(自身を除く): 80852064

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 255859, 511718, 1023436, 2046872, 4093744, 4861321, 9722642, 19445284, 38890568, 77781136]

約数ペア:

[(1, 77781136), (2, 38890568), (4, 19445284), (8, 9722642), (16, 4861321), (19, 4093744), (38, 2046872), (76, 1023436), (152, 511718), (304, 255859)]