28057784

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 53751600

約数和(自身を除く): 25693816

約数列:

[1, 2, 4, 8, 89, 157, 178, 251, 314, 356, 502, 628, 712, 1004, 1256, 2008, 13973, 22339, 27946, 39407, 44678, 55892, 78814, 89356, 111784, 157628, 178712, 315256, 3507223, 7014446, 14028892, 28057784]

約数ペア:

[(1, 28057784), (2, 14028892), (4, 7014446), (8, 3507223), (89, 315256), (157, 178712), (178, 157628), (251, 111784), (314, 89356), (356, 78814), (502, 55892), (628, 44678), (712, 39407), (1004, 27946), (1256, 22339), (2008, 13973)]