16980145

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{557}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 25498368

約数和(自身を除く): 8518223

約数列:

[1, 5, 7, 13, 35, 65, 67, 91, 335, 455, 469, 557, 871, 2345, 2785, 3899, 4355, 6097, 7241, 19495, 30485, 36205, 37319, 50687, 186595, 253435, 261233, 485147, 1306165, 2425735, 3396029, 16980145]

約数ペア:

[(1, 16980145), (5, 3396029), (7, 2425735), (13, 1306165), (35, 485147), (65, 261233), (67, 253435), (91, 186595), (335, 50687), (455, 37319), (469, 36205), (557, 30485), (871, 19495), (2345, 7241), (2785, 6097), (3899, 4355)]