40003994

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1\times {\mathrm{853}}^1$

素因数の和:1165

約数の個数: 16

約数和(自身を含む): 60873120

約数和(自身を除く): 20869126

約数列:

[1, 2, 131, 179, 262, 358, 853, 1706, 23449, 46898, 111743, 152687, 223486, 305374, 20001997, 40003994]

約数ペア:

[(1, 40003994), (2, 20001997), (131, 305374), (179, 223486), (262, 152687), (358, 111743), (853, 46898), (1706, 23449)]