42399920

素因数分解:

$2^4\times 5^1\times {\mathrm{529999}}^1$

素因数の和:530012

約数の個数: 20

約数和(自身を含む): 98580000

約数和(自身を除く): 56180080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 529999, 1059998, 2119996, 2649995, 4239992, 5299990, 8479984, 10599980, 21199960, 42399920]

約数ペア:

[(1, 42399920), (2, 21199960), (4, 10599980), (5, 8479984), (8, 5299990), (10, 4239992), (16, 2649995), (20, 2119996), (40, 1059998), (80, 529999)]