19899780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{331663}}^1$

素因数の和:331675

約数の個数: 24

約数和(自身を含む): 55719552

約数和(自身を除く): 35819772

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 331663, 663326, 994989, 1326652, 1658315, 1989978, 3316630, 3979956, 4974945, 6633260, 9949890, 19899780]

約数ペア:

[(1, 19899780), (2, 9949890), (3, 6633260), (4, 4974945), (5, 3979956), (6, 3316630), (10, 1989978), (12, 1658315), (15, 1326652), (20, 994989), (30, 663326), (60, 331663)]