81159958

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1\times {\mathrm{233}}^1$

素因数の和:540

約数の個数: 32

約数和(自身を含む): 135862272

約数和(自身を除く): 54702314

約数列:

[1, 2, 11, 22, 71, 142, 223, 233, 446, 466, 781, 1562, 2453, 2563, 4906, 5126, 15833, 16543, 31666, 33086, 51959, 103918, 174163, 181973, 348326, 363946, 571549, 1143098, 3689089, 7378178, 40579979, 81159958]

約数ペア:

[(1, 81159958), (2, 40579979), (11, 7378178), (22, 3689089), (71, 1143098), (142, 571549), (223, 363946), (233, 348326), (446, 181973), (466, 174163), (781, 103918), (1562, 51959), (2453, 33086), (2563, 31666), (4906, 16543), (5126, 15833)]