81577154

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{4133}}^1$

素因数の和:4345

約数の個数: 16

約数和(自身を含む): 125012160

約数和(自身を除く): 43435006

約数列:

[1, 2, 71, 139, 142, 278, 4133, 8266, 9869, 19738, 293443, 574487, 586886, 1148974, 40788577, 81577154]

約数ペア:

[(1, 81577154), (2, 40788577), (71, 1148974), (139, 586886), (142, 574487), (278, 293443), (4133, 19738), (8266, 9869)]