201317225

素因数分解:

$5^2\times {\mathrm{127}}^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 253793280

約数和(自身を除く): 52476055

約数列:

[1, 5, 25, 127, 163, 389, 635, 815, 1945, 3175, 4075, 9725, 20701, 49403, 63407, 103505, 247015, 317035, 517525, 1235075, 1585175, 8052689, 40263445, 201317225]

約数ペア:

[(1, 201317225), (5, 40263445), (25, 8052689), (127, 1585175), (163, 1235075), (389, 517525), (635, 317035), (815, 247015), (1945, 103505), (3175, 63407), (4075, 49403), (9725, 20701)]