409281025

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{349}}^1\times {\mathrm{769}}^1$

素因数の和:1189

約数の個数: 24

約数和(自身を含む): 517979000

約数和(自身を除く): 108697975

約数列:

[1, 5, 25, 61, 305, 349, 769, 1525, 1745, 3845, 8725, 19225, 21289, 46909, 106445, 234545, 268381, 532225, 1172725, 1341905, 6709525, 16371241, 81856205, 409281025]

約数ペア:

[(1, 409281025), (5, 81856205), (25, 16371241), (61, 6709525), (305, 1341905), (349, 1172725), (769, 532225), (1525, 268381), (1745, 234545), (3845, 106445), (8725, 46909), (19225, 21289)]