638042492

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{3890503}}^1$

素因数の和:3890548

約数の個数: 12

約数和(自身を含む): 1143808176

約数和(自身を除く): 505765684

約数列:

[1, 2, 4, 41, 82, 164, 3890503, 7781006, 15562012, 159510623, 319021246, 638042492]

約数ペア:

[(1, 638042492), (2, 319021246), (4, 159510623), (41, 15562012), (82, 7781006), (164, 3890503)]