1289264

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{4241}}^1$

素因数の和:4268

約数の個数: 20

約数和(自身を含む): 2630040

約数和(自身を除く): 1340776

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 4241, 8482, 16964, 33928, 67856, 80579, 161158, 322316, 644632, 1289264]

約数ペア:

[(1, 1289264), (2, 644632), (4, 322316), (8, 161158), (16, 80579), (19, 67856), (38, 33928), (76, 16964), (152, 8482), (304, 4241)]