159927920

素因数分解:

$2^4\times 5^1\times {\mathrm{1999099}}^1$

素因数の和:1999112

約数の個数: 20

約数和(自身を含む): 371832600

約数和(自身を除く): 211904680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1999099, 3998198, 7996396, 9995495, 15992792, 19990990, 31985584, 39981980, 79963960, 159927920]

約数ペア:

[(1, 159927920), (2, 79963960), (4, 39981980), (5, 31985584), (8, 19990990), (10, 15992792), (16, 9995495), (20, 7996396), (40, 3998198), (80, 1999099)]