12520235

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3931}}^1$

素因数の和:3963

約数の個数: 24

約数和(自身を含む): 18826416

約数和(自身を除く): 6306181

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 3931, 19655, 27517, 51103, 137585, 192619, 255515, 357721, 963095, 1788605, 2504047, 12520235]

約数ペア:

[(1, 12520235), (5, 2504047), (7, 1788605), (13, 963095), (35, 357721), (49, 255515), (65, 192619), (91, 137585), (245, 51103), (455, 27517), (637, 19655), (3185, 3931)]