19795225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{991}}^1$

素因数の和:1065

約数の個数: 24

約数和(自身を含む): 26569728

約数和(自身を除く): 6774503

約数列:

[1, 5, 17, 25, 47, 85, 235, 425, 799, 991, 1175, 3995, 4955, 16847, 19975, 24775, 46577, 84235, 232885, 421175, 791809, 1164425, 3959045, 19795225]

約数ペア:

[(1, 19795225), (5, 3959045), (17, 1164425), (25, 791809), (47, 421175), (85, 232885), (235, 84235), (425, 46577), (799, 24775), (991, 19975), (1175, 16847), (3995, 4955)]