218210128

素因数分解:

$2^4\times {\mathrm{431}}^1\times {\mathrm{31643}}^1$

素因数の和:32082

約数の個数: 20

約数和(自身を含む): 423776448

約数和(自身を除く): 205566320

約数列:

[1, 2, 4, 8, 16, 431, 862, 1724, 3448, 6896, 31643, 63286, 126572, 253144, 506288, 13638133, 27276266, 54552532, 109105064, 218210128]

約数ペア:

[(1, 218210128), (2, 109105064), (4, 54552532), (8, 27276266), (16, 13638133), (431, 506288), (862, 253144), (1724, 126572), (3448, 63286), (6896, 31643)]