28678005

素因数分解:

$3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{2539}}^1$

素因数の和:2801

約数の個数: 24

約数和(自身を含む): 49926240

約数和(自身を除く): 21248235

約数列:

[1, 3, 5, 9, 15, 45, 251, 753, 1255, 2259, 2539, 3765, 7617, 11295, 12695, 22851, 38085, 114255, 637289, 1911867, 3186445, 5735601, 9559335, 28678005]

約数ペア:

[(1, 28678005), (3, 9559335), (5, 5735601), (9, 3186445), (15, 1911867), (45, 637289), (251, 114255), (753, 38085), (1255, 22851), (2259, 12695), (2539, 11295), (3765, 7617)]