20279800

素因数分解:

$2^3\times 5^2\times {\mathrm{101399}}^1$

素因数の和:101415

約数の個数: 24

約数和(自身を含む): 47151000

約数和(自身を除く): 26871200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 101399, 202798, 405596, 506995, 811192, 1013990, 2027980, 2534975, 4055960, 5069950, 10139900, 20279800]

約数ペア:

[(1, 20279800), (2, 10139900), (4, 5069950), (5, 4055960), (8, 2534975), (10, 2027980), (20, 1013990), (25, 811192), (40, 506995), (50, 405596), (100, 202798), (200, 101399)]