31559905

素因数分解:

$5^1\times {\mathrm{13}}^5\times {\mathrm{17}}^1$

素因数の和:87

約数の個数: 24

約数和(自身を含む): 43441272

約数和(自身を除く): 11881367

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 845, 1105, 2197, 2873, 10985, 14365, 28561, 37349, 142805, 186745, 371293, 485537, 1856465, 2427685, 6311981, 31559905]

約数ペア:

[(1, 31559905), (5, 6311981), (13, 2427685), (17, 1856465), (65, 485537), (85, 371293), (169, 186745), (221, 142805), (845, 37349), (1105, 28561), (2197, 14365), (2873, 10985)]