161567920

素因数分解:

$2^4\times 5^1\times {\mathrm{2019599}}^1$

素因数の和:2019612

約数の個数: 20

約数和(自身を含む): 375645600

約数和(自身を除く): 214077680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2019599, 4039198, 8078396, 10097995, 16156792, 20195990, 32313584, 40391980, 80783960, 161567920]

約数ペア:

[(1, 161567920), (2, 80783960), (4, 40391980), (5, 32313584), (8, 20195990), (10, 16156792), (16, 10097995), (20, 8078396), (40, 4039198), (80, 2019599)]