64766480

素因数分解:

$2^4\times 5^1\times {\mathrm{809581}}^1$

素因数の和:809594

約数の個数: 20

約数和(自身を含む): 150582252

約数和(自身を除く): 85815772

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 809581, 1619162, 3238324, 4047905, 6476648, 8095810, 12953296, 16191620, 32383240, 64766480]

約数ペア:

[(1, 64766480), (2, 32383240), (4, 16191620), (5, 12953296), (8, 8095810), (10, 6476648), (16, 4047905), (20, 3238324), (40, 1619162), (80, 809581)]