40559920

素因数分解:

$2^4\times 5^1\times {\mathrm{506999}}^1$

素因数の和:507012

約数の個数: 20

約数和(自身を含む): 94302000

約数和(自身を除く): 53742080

約数列:

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

約数ペア:

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