51215255

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3631}}^1$

素因数の和:3687

約数の個数: 32

約数和(自身を含む): 78102528

約数和(自身を除く): 26887273

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 455, 1085, 2015, 2821, 3631, 14105, 18155, 25417, 47203, 112561, 127085, 236015, 330421, 562805, 787927, 1463293, 1652105, 3939635, 7316465, 10243051, 51215255]

約数ペア:

[(1, 51215255), (5, 10243051), (7, 7316465), (13, 3939635), (31, 1652105), (35, 1463293), (65, 787927), (91, 562805), (155, 330421), (217, 236015), (403, 127085), (455, 112561), (1085, 47203), (2015, 25417), (2821, 18155), (3631, 14105)]