64552240

素因数分解:

$2^4\times 5^1\times {\mathrm{806903}}^1$

素因数の和:806916

約数の個数: 20

約数和(自身を含む): 150084144

約数和(自身を除く): 85531904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 806903, 1613806, 3227612, 4034515, 6455224, 8069030, 12910448, 16138060, 32276120, 64552240]

約数ペア:

[(1, 64552240), (2, 32276120), (4, 16138060), (5, 12910448), (8, 8069030), (10, 6455224), (16, 4034515), (20, 3227612), (40, 1613806), (80, 806903)]