243041140

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{18899}}^1$

素因数の和:19551

約数の個数: 24

約数和(自身を含む): 511207200

約数和(自身を除く): 268166060

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2572, 3215, 6430, 12860, 18899, 37798, 75596, 94495, 188990, 377980, 12152057, 24304114, 48608228, 60760285, 121520570, 243041140]

約数ペア:

[(1, 243041140), (2, 121520570), (4, 60760285), (5, 48608228), (10, 24304114), (20, 12152057), (643, 377980), (1286, 188990), (2572, 94495), (3215, 75596), (6430, 37798), (12860, 18899)]