81431234

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1\times {\mathrm{1987}}^1$

素因数の和:2681

約数の個数: 16

約数和(自身を含む): 126341376

約数和(自身を除く): 44910142

約数列:

[1, 2, 31, 62, 661, 1322, 1987, 3974, 20491, 40982, 61597, 123194, 1313407, 2626814, 40715617, 81431234]

約数ペア:

[(1, 81431234), (2, 40715617), (31, 2626814), (62, 1313407), (661, 123194), (1322, 61597), (1987, 40982), (3974, 20491)]