257415572

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{1481}}^1\times {\mathrm{2287}}^1$

素因数の和:3791

約数の個数: 24

約数和(自身を含む): 474714240

約数和(自身を除く): 217298668

約数列:

[1, 2, 4, 19, 38, 76, 1481, 2287, 2962, 4574, 5924, 9148, 28139, 43453, 56278, 86906, 112556, 173812, 3387047, 6774094, 13548188, 64353893, 128707786, 257415572]

約数ペア:

[(1, 257415572), (2, 128707786), (4, 64353893), (19, 13548188), (38, 6774094), (76, 3387047), (1481, 173812), (2287, 112556), (2962, 86906), (4574, 56278), (5924, 43453), (9148, 28139)]