19706225

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{353}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 31605120

約数和(自身を除く): 11898895

約数列:

[1, 5, 7, 11, 25, 29, 35, 55, 77, 145, 175, 203, 275, 319, 353, 385, 725, 1015, 1595, 1765, 1925, 2233, 2471, 3883, 5075, 7975, 8825, 10237, 11165, 12355, 19415, 27181, 51185, 55825, 61775, 71659, 97075, 112607, 135905, 255925, 358295, 563035, 679525, 788249, 1791475, 2815175, 3941245, 19706225]

約数ペア:

[(1, 19706225), (5, 3941245), (7, 2815175), (11, 1791475), (25, 788249), (29, 679525), (35, 563035), (55, 358295), (77, 255925), (145, 135905), (175, 112607), (203, 97075), (275, 71659), (319, 61775), (353, 55825), (385, 51185), (725, 27181), (1015, 19415), (1595, 12355), (1765, 11165), (1925, 10237), (2233, 8825), (2471, 7975), (3883, 5075)]