641567856

素因数分解:

$2^4\times 3^1\times {\mathrm{13365997}}^1$

素因数の和:13366008

約数の個数: 20

約数和(自身を含む): 1657383752

約数和(自身を除く): 1015815896

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 13365997, 26731994, 40097991, 53463988, 80195982, 106927976, 160391964, 213855952, 320783928, 641567856]

約数ペア:

[(1, 641567856), (2, 320783928), (3, 213855952), (4, 160391964), (6, 106927976), (8, 80195982), (12, 53463988), (16, 40097991), (24, 26731994), (48, 13365997)]