487991620

素因数分解:

$2^2\times 5^1\times {\mathrm{997}}^1\times {\mathrm{24473}}^1$

素因数の和:25479

約数の個数: 24

約数和(自身を含む): 1025852184

約数和(自身を除く): 537860564

約数列:

[1, 2, 4, 5, 10, 20, 997, 1994, 3988, 4985, 9970, 19940, 24473, 48946, 97892, 122365, 244730, 489460, 24399581, 48799162, 97598324, 121997905, 243995810, 487991620]

約数ペア:

[(1, 487991620), (2, 243995810), (4, 121997905), (5, 97598324), (10, 48799162), (20, 24399581), (997, 489460), (1994, 244730), (3988, 122365), (4985, 97892), (9970, 48946), (19940, 24473)]