81390766

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1\times {\mathrm{2221}}^1$

素因数の和:2547

約数の個数: 16

約数和(自身を含む): 124307568

約数和(自身を除く): 42916802

約数列:

[1, 2, 73, 146, 251, 502, 2221, 4442, 18323, 36646, 162133, 324266, 557471, 1114942, 40695383, 81390766]

約数ペア:

[(1, 81390766), (2, 40695383), (73, 1114942), (146, 557471), (251, 324266), (502, 162133), (2221, 36646), (4442, 18323)]