8640495

素因数分解:

$3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1223}}^1$

素因数の和:1391

約数の個数: 24

約数和(自身を含む): 15084576

約数和(自身を除く): 6444081

約数列:

[1, 3, 5, 9, 15, 45, 157, 471, 785, 1223, 1413, 2355, 3669, 6115, 7065, 11007, 18345, 55035, 192011, 576033, 960055, 1728099, 2880165, 8640495]

約数ペア:

[(1, 8640495), (3, 2880165), (5, 1728099), (9, 960055), (15, 576033), (45, 192011), (157, 55035), (471, 18345), (785, 11007), (1223, 7065), (1413, 6115), (2355, 3669)]