64498040

素因数分解:

$2^3\times 5^1\times {\mathrm{1612451}}^1$

素因数の和:1612462

約数の個数: 16

約数和(自身を含む): 145120680

約数和(自身を除く): 80622640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1612451, 3224902, 6449804, 8062255, 12899608, 16124510, 32249020, 64498040]

約数ペア:

[(1, 64498040), (2, 32249020), (4, 16124510), (5, 12899608), (8, 8062255), (10, 6449804), (20, 3224902), (40, 1612451)]