209525525

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{2897}}^1$

素因数の和:3181

約数の個数: 24

約数和(自身を含む): 284606784

約数和(自身を除く): 75081259

約数列:

[1, 5, 11, 25, 55, 263, 275, 1315, 2893, 2897, 6575, 14465, 14485, 31867, 72325, 72425, 159335, 761911, 796675, 3809555, 8381021, 19047775, 41905105, 209525525]

約数ペア:

[(1, 209525525), (5, 41905105), (11, 19047775), (25, 8381021), (55, 3809555), (263, 796675), (275, 761911), (1315, 159335), (2893, 72425), (2897, 72325), (6575, 31867), (14465, 14485)]