64534840

素因数分解:

$2^3\times 5^1\times {\mathrm{1613371}}^1$

素因数の和:1613382

約数の個数: 16

約数和(自身を含む): 145203480

約数和(自身を除く): 80668640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1613371, 3226742, 6453484, 8066855, 12906968, 16133710, 32267420, 64534840]

約数ペア:

[(1, 64534840), (2, 32267420), (4, 16133710), (5, 12906968), (8, 8066855), (10, 6453484), (20, 3226742), (40, 1613371)]