66385540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{255329}}^1$

素因数の和:255351

約数の個数: 24

約数和(自身を含む): 150134040

約数和(自身を除く): 83748500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 255329, 510658, 1021316, 1276645, 2553290, 3319277, 5106580, 6638554, 13277108, 16596385, 33192770, 66385540]

約数ペア:

[(1, 66385540), (2, 33192770), (4, 16596385), (5, 13277108), (10, 6638554), (13, 5106580), (20, 3319277), (26, 2553290), (52, 1276645), (65, 1021316), (130, 510658), (260, 255329)]