66461540

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{25367}}^1$

素因数の和:25507

約数の個数: 24

約数和(自身を含む): 140640192

約数和(自身を除く): 74178652

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 25367, 50734, 101468, 126835, 253670, 507340, 3323077, 6646154, 13292308, 16615385, 33230770, 66461540]

約数ペア:

[(1, 66461540), (2, 33230770), (4, 16615385), (5, 13292308), (10, 6646154), (20, 3323077), (131, 507340), (262, 253670), (524, 126835), (655, 101468), (1310, 50734), (2620, 25367)]