81119840

素因数分解:

$2^5\times 5^1\times {\mathrm{506999}}^1$

素因数の和:507014

約数の個数: 24

約数和(自身を含む): 191646000

約数和(自身を除く): 110526160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 506999, 1013998, 2027996, 2534995, 4055992, 5069990, 8111984, 10139980, 16223968, 20279960, 40559920, 81119840]

約数ペア:

[(1, 81119840), (2, 40559920), (4, 20279960), (5, 16223968), (8, 10139980), (10, 8111984), (16, 5069990), (20, 4055992), (32, 2534995), (40, 2027996), (80, 1013998), (160, 506999)]