20162725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{467}}^1$

素因数の和:645

約数の個数: 24

約数和(自身を含む): 27507168

約数和(自身を除く): 7344443

約数列:

[1, 5, 11, 25, 55, 157, 275, 467, 785, 1727, 2335, 3925, 5137, 8635, 11675, 25685, 43175, 73319, 128425, 366595, 806509, 1832975, 4032545, 20162725]

約数ペア:

[(1, 20162725), (5, 4032545), (11, 1832975), (25, 806509), (55, 366595), (157, 128425), (275, 73319), (467, 43175), (785, 25685), (1727, 11675), (2335, 8635), (3925, 5137)]