220121525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{39841}}^1$

素因数の和:39881

約数の個数: 24

約数和(自身を含む): 311245704

約数和(自身を除く): 91124179

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 5525, 39841, 199205, 517933, 677297, 996025, 2589665, 3386485, 8804861, 12948325, 16932425, 44024305, 220121525]

約数ペア:

[(1, 220121525), (5, 44024305), (13, 16932425), (17, 12948325), (25, 8804861), (65, 3386485), (85, 2589665), (221, 996025), (325, 677297), (425, 517933), (1105, 199205), (5525, 39841)]