19727075

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:323

約数の個数: 24

約数和(自身を含む): 25379328

約数和(自身を除く): 5652253

約数列:

[1, 5, 25, 47, 103, 163, 235, 515, 815, 1175, 2575, 4075, 4841, 7661, 16789, 24205, 38305, 83945, 121025, 191525, 419725, 789083, 3945415, 19727075]

約数ペア:

[(1, 19727075), (5, 3945415), (25, 789083), (47, 419725), (103, 191525), (163, 121025), (235, 83945), (515, 38305), (815, 24205), (1175, 16789), (2575, 7661), (4075, 4841)]